97910785 has 32 divisors (see below), whose sum is σ = 139594752. Its totient is φ = 64532160.

The previous prime is 97910759. The next prime is 97910789. The reversal of 97910785 is 58701979.

It is not a de Polignac number, because 97910785 - 2⁹ = 97910273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97910789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100350 + ... + 101320.

It is an arithmetic number, because the mean of its divisors is an integer number (4362336).

It is a Proth number, since it is equal to 747 ⋅ 2¹⁷ + 1 and 747 < 2¹⁷.

Almost surely, 2^97910785 is an apocalyptic number.

It is an amenable number.

97910785 is a deficient number, since it is larger than the sum of its proper divisors (41683967).

97910785 is a wasteful number, since it uses less digits than its factorization.

97910785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 97910785 is about 9894.9878726555. The cubic root of 97910785 is about 460.9036819429.

The spelling of 97910785 in words is "ninety-seven million, nine hundred ten thousand, seven hundred eighty-five".