99997065 has 32 divisors (see below), whose sum is σ = 203170560. Its totient is φ = 45712512.

The previous prime is 99997063. The next prime is 99997067. The reversal of 99997065 is 56079999.

It is an interprime number because it is at equal distance from previous prime (99997063) and next prime (99997067).

It is not a de Polignac number, because 99997065 - 2¹ = 99997063 is a prime.

It is a super-2 number, since 2×99997065² = 19998826017228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99997063) 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, 51964 + ... + 53853.

It is an arithmetic number, because the mean of its divisors is an integer number (6349080).

Almost surely, 2^99997065 is an apocalyptic number.

It is an amenable number.

99997065 is an abundant number, since it is smaller than the sum of its proper divisors (103173495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99997065 is a wasteful number, since it uses less digits than its factorization.

99997065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105838 (or 105832 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 99997065 is about 9999.8532489232. The cubic root of 99997065 is about 464.1543422958.

The spelling of 99997065 in words is "ninety-nine million, nine hundred ninety-seven thousand, sixty-five".