78076656 has 80 divisors (see below), whose sum is σ = 256134400. Its totient is φ = 22306752.

The previous prime is 78076637. The next prime is 78076657. The reversal of 78076656 is 65667087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78076657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9886 + ... + 15933.

It is an arithmetic number, because the mean of its divisors is an integer number (3201680).

Almost surely, 2^78076656 is an apocalyptic number.

It is an amenable number.

78076656 is an abundant number, since it is smaller than the sum of its proper divisors (178057744).

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

78076656 is a wasteful number, since it uses less digits than its factorization.

78076656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25843 (or 25831 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 78076656 is about 8836.0995920146. The cubic root of 78076656 is about 427.4057902590.

The spelling of 78076656 in words is "seventy-eight million, seventy-six thousand, six hundred fifty-six".