78092064 has 72 divisors (see below), whose sum is σ = 223134912. Its totient is φ = 25906560.

The previous prime is 78092011. The next prime is 78092083. The reversal of 78092064 is 46029087.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 75229 + ... + 76259.

It is an arithmetic number, because the mean of its divisors is an integer number (3099096).

Almost surely, 2^78092064 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 78092064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111567456).

78092064 is an abundant number, since it is smaller than the sum of its proper divisors (145042848).

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

78092064 is a wasteful number, since it uses less digits than its factorization.

78092064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78092064 is about 8836.9714269087. The cubic root of 78092064 is about 427.4339038062.

The spelling of 78092064 in words is "seventy-eight million, ninety-two thousand, sixty-four".