99997695 has 24 divisors (see below), whose sum is σ = 198091296. Its totient is φ = 45713088.

The previous prime is 99997691. The next prime is 99997759. The reversal of 99997695 is 59679999.

It is not a de Polignac number, because 99997695 - 2² = 99997691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99997691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158412 + ... + 159041.

It is an arithmetic number, because the mean of its divisors is an integer number (8253804).

Almost surely, 2^99997695 is an apocalyptic number.

99997695 is a deficient number, since it is larger than the sum of its proper divisors (98093601).

99997695 is a wasteful number, since it uses less digits than its factorization.

99997695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317471 (or 317468 counting only the distinct ones).

The product of its digits is 12400290, while the sum is 63.

The square root of 99997695 is about 9999.8847493359. The cubic root of 99997695 is about 464.1553170465.

The spelling of 99997695 in words is "ninety-nine million, nine hundred ninety-seven thousand, six hundred ninety-five".