89897538 has 16 divisors (see below), whose sum is σ = 179899776. Its totient is φ = 29948400.

The previous prime is 89897527. The next prime is 89897539. The reversal of 89897538 is 83579898.

It is a super-2 number, since 2×89897538² = 16163134676922888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89897539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10920 + ... + 17292.

It is an arithmetic number, because the mean of its divisors is an integer number (11243736).

Almost surely, 2^89897538 is an apocalyptic number.

89897538 is an abundant number, since it is smaller than the sum of its proper divisors (90002238).

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

89897538 is a wasteful number, since it uses less digits than its factorization.

89897538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729.

The product of its digits is 4354560, while the sum is 57.

The square root of 89897538 is about 9481.4312210763. The cubic root of 89897538 is about 447.9703457465.

The spelling of 89897538 in words is "eighty-nine million, eight hundred ninety-seven thousand, five hundred thirty-eight".