87728076 has 24 divisors (see below), whose sum is σ = 227443440. Its totient is φ = 29242656.

The previous prime is 87728059. The next prime is 87728083. The reversal of 87728076 is 67082778.

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, 406041 + ... + 406256.

It is an arithmetic number, because the mean of its divisors is an integer number (9476810).

Almost surely, 2^87728076 is an apocalyptic number.

It is an amenable number.

87728076 is an abundant number, since it is smaller than the sum of its proper divisors (139715364).

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

87728076 is a wasteful number, since it uses less digits than its factorization.

87728076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812310 (or 812302 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 87728076 is about 9366.3267079469. The cubic root of 87728076 is about 444.3373987661.

The spelling of 87728076 in words is "eighty-seven million, seven hundred twenty-eight thousand, seventy-six".