89154387 has 24 divisors (see below), whose sum is σ = 147423744. Its totient is φ = 50859504.

The previous prime is 89154379. The next prime is 89154397. The reversal of 89154387 is 78345198.

It is not a de Polignac number, because 89154387 - 2³ = 89154379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89154337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68848 + ... + 70130.

It is an arithmetic number, because the mean of its divisors is an integer number (6142656).

Almost surely, 2^89154387 is an apocalyptic number.

89154387 is a deficient number, since it is larger than the sum of its proper divisors (58269357).

89154387 is a wasteful number, since it uses less digits than its factorization.

89154387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2396 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 89154387 is about 9442.1600812526. The cubic root of 89154387 is about 446.7325246943.

It can be divided in two parts, 891 and 54387, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 89154387 in words is "eighty-nine million, one hundred fifty-four thousand, three hundred eighty-seven".