78794752 has 26 divisors (see below), whose sum is σ = 157578458. Its totient is φ = 39395328.

The previous prime is 78794741. The next prime is 78794761. The reversal of 78794752 is 25749787.

It can be written as a sum of positive squares in only one way, i.e., 53231616 + 25563136 = 7296^2 + 5056^2 .

It is a super-2 number, since 2×78794752² = 12417225885483008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78794696 and 78794705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5523 + ... + 13714.

Almost surely, 2^78794752 is an apocalyptic number.

It is an amenable number.

78794752 is a deficient number, since it is larger than the sum of its proper divisors (78783706).

78794752 is an equidigital number, since it uses as much as digits as its factorization.

78794752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261 (or 19239 counting only the distinct ones).

The product of its digits is 987840, while the sum is 49.

The square root of 78794752 is about 8876.6408060707. The cubic root of 78794752 is about 428.7121227805.

The spelling of 78794752 in words is "seventy-eight million, seven hundred ninety-four thousand, seven hundred fifty-two".