89491592 has 8 divisors (see below), whose sum is σ = 167796750. Its totient is φ = 44745792.

The previous prime is 89491583. The next prime is 89491601. The reversal of 89491592 is 29519498.

It is an interprime number because it is at equal distance from previous prime (89491583) and next prime (89491601).

It can be written as a sum of positive squares in only one way, i.e., 85858756 + 3632836 = 9266^2 + 1906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5593217 + ... + 5593232.

Almost surely, 2^89491592 is an apocalyptic number.

It is an amenable number.

89491592 is a deficient number, since it is larger than the sum of its proper divisors (78305158).

89491592 is a wasteful number, since it uses less digits than its factorization.

89491592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186455 (or 11186451 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The square root of 89491592 is about 9459.9995771670. Note that the first 3 decimals coincide. The cubic root of 89491592 is about 447.2950355017.

The spelling of 89491592 in words is "eighty-nine million, four hundred ninety-one thousand, five hundred ninety-two".