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97984661 is a prime number
BaseRepresentation
bin1011101011100…
…10000010010101
320211101010200112
411311302002111
5200041002121
613420052405
72266566365
oct565620225
9224333615
1097984661
1150345365
1228994105
13173b93b8
14d0289a5
15890775b
hex5d72095

97984661 has 2 divisors, whose sum is σ = 97984662. Its totient is φ = 97984660.

The previous prime is 97984643. The next prime is 97984687. The reversal of 97984661 is 16648979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 24196561 = 8590^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 97984661 - 26 = 97984597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97984631) 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, 48992330 + 48992331.

It is an arithmetic number, because the mean of its divisors is an integer number (48992331).

Almost surely, 297984661 is an apocalyptic number.

It is an amenable number.

97984661 is a deficient number, since it is larger than the sum of its proper divisors (1).

97984661 is an equidigital number, since it uses as much as digits as its factorization.

97984661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 97984661 is about 9898.7201697997. The cubic root of 97984661 is about 461.0195737051.

The spelling of 97984661 in words is "ninety-seven million, nine hundred eighty-four thousand, six hundred sixty-one".