89873638 has 16 divisors (see below), whose sum is σ = 138471120. Its totient is φ = 43732000.

The previous prime is 89873633. The next prime is 89873653. The reversal of 89873638 is 83637898.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89873633) 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, 8148 + ... + 15688.

It is an arithmetic number, because the mean of its divisors is an integer number (8654445).

Almost surely, 2^89873638 is an apocalyptic number.

89873638 is a deficient number, since it is larger than the sum of its proper divisors (48597482).

89873638 is a wasteful number, since it uses less digits than its factorization.

89873638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703.

The product of its digits is 1741824, while the sum is 52.

The square root of 89873638 is about 9480.1707790525. The cubic root of 89873638 is about 447.9306433608.

The spelling of 89873638 in words is "eighty-nine million, eight hundred seventy-three thousand, six hundred thirty-eight".