87182946 has 32 divisors (see below), whose sum is σ = 196639680. Its totient is φ = 28626048.

The previous prime is 87182939. The next prime is 87182947. The reversal of 87182946 is 64928178.

It is not an unprimeable number, because it can be changed into a prime (87182947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8431 + ... + 15666.

It is an arithmetic number, because the mean of its divisors is an integer number (6144990).

Almost surely, 2^87182946 is an apocalyptic number.

87182946 is an abundant number, since it is smaller than the sum of its proper divisors (109456734).

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

87182946 is a wasteful number, since it uses less digits than its factorization.

87182946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24175 (or 24169 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 87182946 is about 9337.1808379189. The cubic root of 87182946 is about 443.4151356894.

It can be divided in two parts, 8718 and 2946, that added together give a square (11664 = 108²).

The spelling of 87182946 in words is "eighty-seven million, one hundred eighty-two thousand, nine hundred forty-six".