87780508 has 24 divisors (see below), whose sum is σ = 160347600. Its totient is φ = 42007680.

The previous prime is 87780493. The next prime is 87780521. The reversal of 87780508 is 80508778.

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, 3643 + ... + 13741.

It is an arithmetic number, because the mean of its divisors is an integer number (6681150).

Almost surely, 2^87780508 is an apocalyptic number.

It is an amenable number.

87780508 is a deficient number, since it is larger than the sum of its proper divisors (72567092).

87780508 is a wasteful number, since it uses less digits than its factorization.

87780508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197 (or 10195 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 87780508 is about 9369.1252526583. The cubic root of 87780508 is about 444.4259027728.

It can be divided in two parts, 8778050 and 8, that multiplied together give a square (70224400 = 8380²).

The spelling of 87780508 in words is "eighty-seven million, seven hundred eighty thousand, five hundred eight".