89731761 has 8 divisors (see below), whose sum is σ = 136734144. Its totient is φ = 51275280.

The previous prime is 89731757. The next prime is 89731769. The reversal of 89731761 is 16713798.

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

It is not a de Polignac number, because 89731761 - 2² = 89731757 is a prime.

It is a super-2 number, since 2×89731761² = 16103577864322242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89731769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136450 + ... + 2136491.

It is an arithmetic number, because the mean of its divisors is an integer number (17091768).

Almost surely, 2^89731761 is an apocalyptic number.

It is an amenable number.

89731761 is a deficient number, since it is larger than the sum of its proper divisors (47002383).

89731761 is a wasteful number, since it uses less digits than its factorization.

89731761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272951.

The product of its digits is 63504, while the sum is 42.

The square root of 89731761 is about 9472.6849942347. The cubic root of 89731761 is about 447.6948140052.

The spelling of 89731761 in words is "eighty-nine million, seven hundred thirty-one thousand, seven hundred sixty-one".