87306772 has 12 divisors (see below), whose sum is σ = 174613600. Its totient is φ = 37417176.

The previous prime is 87306763. The next prime is 87306773. The reversal of 87306772 is 27760378.

87306772 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87306773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559022 + ... + 1559077.

Almost surely, 2^87306772 is an apocalyptic number.

It is an amenable number.

87306772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87306772 is a wasteful number, since it uses less digits than its factorization.

87306772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118110 (or 3118108 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 87306772 is about 9343.8092874373. The cubic root of 87306772 is about 443.6249639915.

The spelling of 87306772 in words is "eighty-seven million, three hundred six thousand, seven hundred seventy-two".