89319492 has 18 divisors (see below), whose sum is σ = 225779918. Its totient is φ = 29773152.

The previous prime is 89319473. The next prime is 89319493. The reversal of 89319492 is 29491398.

It can be written as a sum of positive squares in only one way, i.e., 84934656 + 4384836 = 9216^2 + 2094^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×89319492² = 15955943302276128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89319493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1240513 + ... + 1240584.

Almost surely, 2^89319492 is an apocalyptic number.

It is an amenable number.

89319492 is an abundant number, since it is smaller than the sum of its proper divisors (136460426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89319492 is a wasteful number, since it uses less digits than its factorization.

89319492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481107 (or 2481102 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 89319492 is about 9450.8990048566. The cubic root of 89319492 is about 447.0081226096.

The spelling of 89319492 in words is "eighty-nine million, three hundred nineteen thousand, four hundred ninety-two".