Search a number
-
+
97659481 is a prime number
BaseRepresentation
bin1011101001000…
…10101001011001
320210202121121211
411310202221121
5200000100411
613405103121
72264043343
oct564425131
9223677554
1097659481
1150143017
1228857aa1
131730439a
14cd82293
158891221
hex5d22a59

97659481 has 2 divisors, whose sum is σ = 97659482. Its totient is φ = 97659480.

The previous prime is 97659479. The next prime is 97659511. The reversal of 97659481 is 18495679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91489225 + 6170256 = 9565^2 + 2484^2 .

It is an emirp because it is prime and its reverse (18495679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97659481 - 21 = 97659479 is a prime.

It is a super-2 number, since 2×976594812 = 19074748458378722, which contains 22 as substring.

Together with 97659479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97659421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48829740 + 48829741.

It is an arithmetic number, because the mean of its divisors is an integer number (48829741).

Almost surely, 297659481 is an apocalyptic number.

It is an amenable number.

97659481 is a deficient number, since it is larger than the sum of its proper divisors (1).

97659481 is an equidigital number, since it uses as much as digits as its factorization.

97659481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 97659481 is about 9882.2811637799. The cubic root of 97659481 is about 460.5090159325.

The spelling of 97659481 in words is "ninety-seven million, six hundred fifty-nine thousand, four hundred eighty-one".