89157381 has 8 divisors (see below), whose sum is σ = 118993824. Its totient is φ = 59379600.

The previous prime is 89157377. The next prime is 89157389. The reversal of 89157381 is 18375198.

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

It is not a de Polignac number, because 89157381 - 2² = 89157377 is a prime.

It is a super-2 number, since 2×89157381² = 15898077173558322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89157389) 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, 10986 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (14874228).

Almost surely, 2^89157381 is an apocalyptic number.

It is an amenable number.

89157381 is a deficient number, since it is larger than the sum of its proper divisors (29836443).

89157381 is a wasteful number, since it uses less digits than its factorization.

89157381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29331.

The product of its digits is 60480, while the sum is 42.

The square root of 89157381 is about 9442.3186241516. The cubic root of 89157381 is about 446.7375253912.

The spelling of 89157381 in words is "eighty-nine million, one hundred fifty-seven thousand, three hundred eighty-one".