97165785 has 16 divisors (see below), whose sum is σ = 155666880. Its totient is φ = 51754560.

The previous prime is 97165781. The next prime is 97165787. The reversal of 97165785 is 58756179.

It is not a de Polignac number, because 97165785 - 2² = 97165781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97165781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9115 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (9729180).

Almost surely, 2^97165785 is an apocalyptic number.

It is an amenable number.

97165785 is a deficient number, since it is larger than the sum of its proper divisors (58501095).

97165785 is a wasteful number, since it uses less digits than its factorization.

97165785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408.

The product of its digits is 529200, while the sum is 48.

The square root of 97165785 is about 9857.2706668733. The cubic root of 97165785 is about 459.7317039746.

The spelling of 97165785 in words is "ninety-seven million, one hundred sixty-five thousand, seven hundred eighty-five".