78503952 has 20 divisors (see below), whose sum is σ = 202802000. Its totient is φ = 26167968.

The previous prime is 78503947. The next prime is 78503983. The reversal of 78503952 is 25930587.

It is a self number, because there is not a number n which added to its sum of digits gives 78503952.

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, 817702 + ... + 817797.

It is an arithmetic number, because the mean of its divisors is an integer number (10140100).

Almost surely, 2^78503952 is an apocalyptic number.

It is an amenable number.

78503952 is an abundant number, since it is smaller than the sum of its proper divisors (124298048).

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

78503952 is a wasteful number, since it uses less digits than its factorization.

78503952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635510 (or 1635504 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 78503952 is about 8860.2455947902. The cubic root of 78503952 is about 428.1840708235.

The spelling of 78503952 in words is "seventy-eight million, five hundred three thousand, nine hundred fifty-two".