87770332 has 24 divisors (see below), whose sum is σ = 168539616. Its totient is φ = 39743808.

The previous prime is 87770321. The next prime is 87770351. The reversal of 87770332 is 23307778.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87770291 and 87770300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13168 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (7022484).

Almost surely, 2^87770332 is an apocalyptic number.

It is an amenable number.

87770332 is a deficient number, since it is larger than the sum of its proper divisors (80769284).

87770332 is a wasteful number, since it uses less digits than its factorization.

87770332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31917 (or 31915 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 87770332 is about 9368.5821766156. The cubic root of 87770332 is about 444.4087286762.

The spelling of 87770332 in words is "eighty-seven million, seven hundred seventy thousand, three hundred thirty-two".