97906165 has 12 divisors (see below), whose sum is σ = 136669356. Its totient is φ = 67135488.

The previous prime is 97906129. The next prime is 97906169. The reversal of 97906165 is 56160979.

It can be written as a sum of positive squares in 2 ways, for example, as 49589764 + 48316401 = 7042^2 + 6951^2 .

It is not a de Polignac number, because 97906165 - 2¹³ = 97897973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97906169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199564 + ... + 200053.

It is an arithmetic number, because the mean of its divisors is an integer number (11389113).

Almost surely, 2^97906165 is an apocalyptic number.

It is an amenable number.

97906165 is a deficient number, since it is larger than the sum of its proper divisors (38763191).

97906165 is a wasteful number, since it uses less digits than its factorization.

97906165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399636 (or 399629 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 97906165 is about 9894.7544183774. The cubic root of 97906165 is about 460.8964324572.

The spelling of 97906165 in words is "ninety-seven million, nine hundred six thousand, one hundred sixty-five".