87552906 has 48 divisors (see below), whose sum is σ = 204882624. Its totient is φ = 24869376.

The previous prime is 87552889. The next prime is 87552929. The reversal of 87552906 is 60925578.

It is a super-2 number, since 2×87552906² = 15331022698089672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 55971 + ... + 57513.

It is an arithmetic number, because the mean of its divisors is an integer number (4268388).

Almost surely, 2^87552906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87552906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102441312).

87552906 is an abundant number, since it is smaller than the sum of its proper divisors (117329718).

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

87552906 is a wasteful number, since it uses less digits than its factorization.

87552906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 87552906 is about 9356.9709842448. The cubic root of 87552906 is about 444.0414598895.

The spelling of 87552906 in words is "eighty-seven million, five hundred fifty-two thousand, nine hundred six".