78508460 has 24 divisors (see below), whose sum is σ = 165258576. Its totient is φ = 31328960.

The previous prime is 78508459. The next prime is 78508483. The reversal of 78508460 is 6480587.

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, 4430 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (6885774).

Almost surely, 2^78508460 is an apocalyptic number.

It is a pronic number, being equal to 8860×8861.

It is an amenable number.

78508460 is an abundant number, since it is smaller than the sum of its proper divisors (86750116).

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

78508460 is a wasteful number, since it uses less digits than its factorization.

78508460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313 (or 9311 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 78508460 is about 8860.4999858924. The cubic root of 78508460 is about 428.1922666607.

The spelling of 78508460 in words is "seventy-eight million, five hundred eight thousand, four hundred sixty".