78368824 has 16 divisors (see below), whose sum is σ = 147363120. Its totient is φ = 39072000.

The previous prime is 78368819. The next prime is 78368839. The reversal of 78368824 is 42886387.

It is a super-2 number, since 2×78368824² = 12283345150285952, which contains 22 as substring.

It is a congruent number.

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, 11052 + ... + 16699.

It is an arithmetic number, because the mean of its divisors is an integer number (9210195).

Almost surely, 2^78368824 is an apocalyptic number.

It is an amenable number.

78368824 is a deficient number, since it is larger than the sum of its proper divisors (68994296).

78368824 is a wasteful number, since it uses less digits than its factorization.

78368824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28110 (or 28106 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 78368824 is about 8852.6167882723. The cubic root of 78368824 is about 427.9382535316.

The spelling of 78368824 in words is "seventy-eight million, three hundred sixty-eight thousand, eight hundred twenty-four".