87788012 has 12 divisors (see below), whose sum is σ = 165446736. Its totient is φ = 40517520.

The previous prime is 87787991. The next prime is 87788083. The reversal of 87788012 is 21088778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844064 + ... + 844167.

It is an arithmetic number, because the mean of its divisors is an integer number (13787228).

Almost surely, 2^87788012 is an apocalyptic number.

It is an amenable number.

87788012 is a deficient number, since it is larger than the sum of its proper divisors (77658724).

87788012 is a wasteful number, since it uses less digits than its factorization.

87788012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688248 (or 1688246 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 87788012 is about 9369.5257083803. The cubic root of 87788012 is about 444.4385664686.

The spelling of 87788012 in words is "eighty-seven million, seven hundred eighty-eight thousand, twelve".