87474632 has 48 divisors (see below), whose sum is σ = 197876160. Its totient is φ = 35507808.

The previous prime is 87474631. The next prime is 87474703. The reversal of 87474632 is 23647478.

It is a super-2 number, since 2×87474632² = 15303622487070848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87474632.

It is not an unprimeable number, because it can be changed into a prime (87474631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18053 + ... + 22379.

It is an arithmetic number, because the mean of its divisors is an integer number (4122420).

Almost surely, 2^87474632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87474632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98938080).

87474632 is an abundant number, since it is smaller than the sum of its proper divisors (110401528).

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

87474632 is a wasteful number, since it uses less digits than its factorization.

87474632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378 (or 4355 counting only the distinct ones).

The product of its digits is 225792, while the sum is 41.

The square root of 87474632 is about 9352.7873920025. The cubic root of 87474632 is about 443.9090932031.

The spelling of 87474632 in words is "eighty-seven million, four hundred seventy-four thousand, six hundred thirty-two".