89971138 has 8 divisors (see below), whose sum is σ = 138248460. Its totient is φ = 43888320.

The previous prime is 89971127. The next prime is 89971159. The reversal of 89971138 is 83117998.

It can be written as a sum of positive squares in 2 ways, for example, as 89813529 + 157609 = 9477^2 + 397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548523 + ... + 548686.

Almost surely, 2^89971138 is an apocalyptic number.

89971138 is a deficient number, since it is larger than the sum of its proper divisors (48277322).

89971138 is a wasteful number, since it uses less digits than its factorization.

89971138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097252.

The product of its digits is 108864, while the sum is 46.

The square root of 89971138 is about 9485.3116975669. The cubic root of 89971138 is about 448.0925649770.

It can be divided in two parts, 89971 and 138, that added together give a palindrome (90109).

The spelling of 89971138 in words is "eighty-nine million, nine hundred seventy-one thousand, one hundred thirty-eight".