78569950 has 24 divisors (see below), whose sum is σ = 146443752. Its totient is φ = 31362720.

The previous prime is 78569941. The next prime is 78569963. The reversal of 78569950 is 5996587.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78569894 and 78569903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28012 + ... + 30688.

It is an arithmetic number, because the mean of its divisors is an integer number (6101823).

Almost surely, 2^78569950 is an apocalyptic number.

78569950 is a deficient number, since it is larger than the sum of its proper divisors (67873802).

78569950 is a wasteful number, since it uses less digits than its factorization.

78569950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3271 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 78569950 is about 8863.9692012100. The cubic root of 78569950 is about 428.3040281680.

The spelling of 78569950 in words is "seventy-eight million, five hundred sixty-nine thousand, nine hundred fifty".