78941976 has 32 divisors (see below), whose sum is σ = 198506160. Its totient is φ = 26160512.

The previous prime is 78941971. The next prime is 78941977. The reversal of 78941976 is 67914987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78941971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5355 + ... + 13658.

Almost surely, 2^78941976 is an apocalyptic number.

It is an amenable number.

78941976 is an abundant number, since it is smaller than the sum of its proper divisors (119564184).

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

78941976 is a wasteful number, since it uses less digits than its factorization.

78941976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19195 (or 19191 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 78941976 is about 8884.9297127214. The cubic root of 78941976 is about 428.9789656120.

It can be divided in two parts, 7894 and 1976, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 78941976 in words is "seventy-eight million, nine hundred forty-one thousand, nine hundred seventy-six".