89012391 has 16 divisors (see below), whose sum is σ = 135332064. Its totient is φ = 51554304.

The previous prime is 89012351. The next prime is 89012401. The reversal of 89012391 is 19321098.

It is not a de Polignac number, because 89012391 - 2⁷ = 89012263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89012311) 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, 66466 + ... + 67791.

It is an arithmetic number, because the mean of its divisors is an integer number (8458254).

Almost surely, 2^89012391 is an apocalyptic number.

89012391 is a deficient number, since it is larger than the sum of its proper divisors (46319673).

89012391 is a wasteful number, since it uses less digits than its factorization.

89012391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134290.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 89012391 is about 9434.6378308868. The cubic root of 89012391 is about 446.4952286930.

The spelling of 89012391 in words is "eighty-nine million, twelve thousand, three hundred ninety-one".