78224976 has 60 divisors (see below), whose sum is σ = 230451520. Its totient is φ = 24701760.

The previous prime is 78224953. The next prime is 78224981. The reversal of 78224976 is 67942287.

It is a super-2 number, since 2×78224976² = 12238293740401152, 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 11 ways as a sum of consecutive naturals, for example, 11560 + ... + 17031.

Almost surely, 2^78224976 is an apocalyptic number.

78224976 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

78224976 is an abundant number, since it is smaller than the sum of its proper divisors (152226544).

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

78224976 is a wasteful number, since it uses less digits than its factorization.

78224976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28624 (or 28615 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 78224976 is about 8844.4884532685. The cubic root of 78224976 is about 427.6762625978.

The spelling of 78224976 in words is "seventy-eight million, two hundred twenty-four thousand, nine hundred seventy-six".