97705899 has 16 divisors (see below), whose sum is σ = 146912640. Its totient is φ = 64163880.

The previous prime is 97705879. The next prime is 97705913. The reversal of 97705899 is 99850779.

It is a de Polignac number, because none of the positive numbers 2^k-97705899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97705819) 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, 25197 + ... + 28814.

It is an arithmetic number, because the mean of its divisors is an integer number (9182040).

Almost surely, 2^97705899 is an apocalyptic number.

97705899 is a deficient number, since it is larger than the sum of its proper divisors (49206741).

97705899 is a wasteful number, since it uses less digits than its factorization.

97705899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54087 (or 54081 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 97705899 is about 9884.6294315973. The cubic root of 97705899 is about 460.5819650597.

The spelling of 97705899 in words is "ninety-seven million, seven hundred five thousand, eight hundred ninety-nine".