78992064 has 112 divisors (see below), whose sum is σ = 245973600. Its totient is φ = 24772608.

The previous prime is 78992057. The next prime is 78992071. The reversal of 78992064 is 46029987.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78992057) and next prime (78992071).

It is a zygodrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28032 + ... + 30720.

Almost surely, 2^78992064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78992064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122986800).

78992064 is an abundant number, since it is smaller than the sum of its proper divisors (166981536).

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

78992064 is a wasteful number, since it uses less digits than its factorization.

78992064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 78992064 is about 8887.7479712242. The cubic root of 78992064 is about 429.0696742427.

The spelling of 78992064 in words is "seventy-eight million, nine hundred ninety-two thousand, sixty-four".