97919069 has 2 divisors, whose sum is σ = 97919070. Its totient is φ = 97919068.

The previous prime is 97919039. The next prime is 97919117. The reversal of 97919069 is 96091979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87647044 + 10272025 = 9362^2 + 3205^2 .

It is an emirp because it is prime and its reverse (96091979) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97919069 is a prime.

It is a super-2 number, since 2×97919069² = 19176288147653522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97919039) 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, 48959534 + 48959535.

It is an arithmetic number, because the mean of its divisors is an integer number (48959535).

Almost surely, 2^97919069 is an apocalyptic number.

It is an amenable number.

97919069 is a deficient number, since it is larger than the sum of its proper divisors (1).

97919069 is an equidigital number, since it uses as much as digits as its factorization.

97919069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 97919069 is about 9895.4064595650. The cubic root of 97919069 is about 460.9166802332.

The spelling of 97919069 in words is "ninety-seven million, nine hundred nineteen thousand, sixty-nine".