89791025 has 24 divisors (see below), whose sum is σ = 120789144. Its totient is φ = 65945600.

The previous prime is 89791019. The next prime is 89791049. The reversal of 89791025 is 52019798.

It can be written as a sum of positive squares in 12 ways, for example, as 28826161 + 60964864 = 5369^2 + 7808^2 .

It is not a de Polignac number, because 89791025 - 2²⁶ = 22682161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14849 + ... + 20001.

It is an arithmetic number, because the mean of its divisors is an integer number (5032881).

Almost surely, 2^89791025 is an apocalyptic number.

89791025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

89791025 is a deficient number, since it is larger than the sum of its proper divisors (30998119).

89791025 is a wasteful number, since it uses less digits than its factorization.

89791025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 89791025 is about 9475.8126300598. The cubic root of 89791025 is about 447.7933534230.

The spelling of 89791025 in words is "eighty-nine million, seven hundred ninety-one thousand, twenty-five".