78613064 has 8 divisors (see below), whose sum is σ = 147399510. Its totient is φ = 39306528.

The previous prime is 78613061. The next prime is 78613091. The reversal of 78613064 is 46031687.

It can be written as a sum of positive squares in only one way, i.e., 75864100 + 2748964 = 8710^2 + 1658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (78613061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4913309 + ... + 4913324.

Almost surely, 2^78613064 is an apocalyptic number.

It is an amenable number.

78613064 is a deficient number, since it is larger than the sum of its proper divisors (68786446).

78613064 is a wasteful number, since it uses less digits than its factorization.

78613064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826639 (or 9826635 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78613064 is about 8866.4008481458. The cubic root of 78613064 is about 428.3823554983.

The spelling of 78613064 in words is "seventy-eight million, six hundred thirteen thousand, sixty-four".