89261556 has 12 divisors (see below), whose sum is σ = 208276992. Its totient is φ = 29753848.

The previous prime is 89261539. The next prime is 89261567. The reversal of 89261556 is 65516298.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×89261556² = 15935250759082272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3719220 + ... + 3719243.

It is an arithmetic number, because the mean of its divisors is an integer number (17356416).

Almost surely, 2^89261556 is an apocalyptic number.

It is an amenable number.

89261556 is an abundant number, since it is smaller than the sum of its proper divisors (119015436).

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

89261556 is a wasteful number, since it uses less digits than its factorization.

89261556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438470 (or 7438468 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 89261556 is about 9447.8334024262. The cubic root of 89261556 is about 446.9114529150.

The spelling of 89261556 in words is "eighty-nine million, two hundred sixty-one thousand, five hundred fifty-six".