78546056 has 8 divisors (see below), whose sum is σ = 147273870. Its totient is φ = 39273024.

The previous prime is 78546047. The next prime is 78546077. The reversal of 78546056 is 65064587.

It can be written as a sum of positive squares in only one way, i.e., 68724100 + 9821956 = 8290^2 + 3134^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4909121 + ... + 4909136.

Almost surely, 2^78546056 is an apocalyptic number.

It is an amenable number.

78546056 is a deficient number, since it is larger than the sum of its proper divisors (68727814).

78546056 is a wasteful number, since it uses less digits than its factorization.

78546056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9818263 (or 9818259 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 78546056 is about 8862.6212826680. The cubic root of 78546056 is about 428.2606064186.

The spelling of 78546056 in words is "seventy-eight million, five hundred forty-six thousand, fifty-six".