89971492 has 24 divisors (see below), whose sum is σ = 176936256. Its totient is φ = 39719328.

The previous prime is 89971487. The next prime is 89971493. The reversal of 89971492 is 29417998.

It is not an unprimeable number, because it can be changed into a prime (89971493) 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, 36418 + ... + 38809.

It is an arithmetic number, because the mean of its divisors is an integer number (7372344).

Almost surely, 2^89971492 is an apocalyptic number.

It is an amenable number.

89971492 is a deficient number, since it is larger than the sum of its proper divisors (86964764).

89971492 is a wasteful number, since it uses less digits than its factorization.

89971492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75267 (or 75265 counting only the distinct ones).

The product of its digits is 326592, while the sum is 49.

The square root of 89971492 is about 9485.3303579791. The cubic root of 89971492 is about 448.0931526639.

The spelling of 89971492 in words is "eighty-nine million, nine hundred seventy-one thousand, four hundred ninety-two".