89415081 has 48 divisors (see below), whose sum is σ = 153204480. Its totient is φ = 49196160.

The previous prime is 89415077. The next prime is 89415107. The reversal of 89415081 is 18051498.

It is not a de Polignac number, because 89415081 - 2² = 89415077 is a prime.

It is a super-2 number, since 2×89415081² = 15990113420473122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89415061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203460 + ... + 203898.

It is an arithmetic number, because the mean of its divisors is an integer number (3191760).

Almost surely, 2^89415081 is an apocalyptic number.

It is an amenable number.

89415081 is a deficient number, since it is larger than the sum of its proper divisors (63789399).

89415081 is a wasteful number, since it uses less digits than its factorization.

89415081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 89415081 is about 9455.9547905011. The cubic root of 89415081 is about 447.1675272546.

The spelling of 89415081 in words is "eighty-nine million, four hundred fifteen thousand, eighty-one".