89505090 has 24 divisors (see below), whose sum is σ = 232713468. Its totient is φ = 23868000.

The previous prime is 89505077. The next prime is 89505103. The reversal of 89505090 is 9050598.

It is an interprime number because it is at equal distance from previous prime (89505077) and next prime (89505103).

It can be written as a sum of positive squares in 2 ways, for example, as 74597769 + 14907321 = 8637^2 + 3861^2 .

It is a super-2 number, since 2×89505090² = 16022322271816200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497161 + ... + 497340.

Almost surely, 2^89505090 is an apocalyptic number.

89505090 is an abundant number, since it is smaller than the sum of its proper divisors (143208378).

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

89505090 is a wasteful number, since it uses less digits than its factorization.

89505090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994514 (or 994511 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 89505090 is about 9460.7129752466. The cubic root of 89505090 is about 447.3175228466.

The spelling of 89505090 in words is "eighty-nine million, five hundred five thousand, ninety".