78473168 has 10 divisors (see below), whose sum is σ = 152041794. Its totient is φ = 39236576.

The previous prime is 78473123. The next prime is 78473179. The reversal of 78473168 is 86137487.

It can be written as a sum of positive squares in only one way, i.e., 71031184 + 7441984 = 8428^2 + 2728^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2452271 + ... + 2452302.

Almost surely, 2^78473168 is an apocalyptic number.

It is an amenable number.

78473168 is a deficient number, since it is larger than the sum of its proper divisors (73568626).

78473168 is a wasteful number, since it uses less digits than its factorization.

78473168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904581 (or 4904575 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 78473168 is about 8858.5082265582. The cubic root of 78473168 is about 428.1280951203.

The spelling of 78473168 in words is "seventy-eight million, four hundred seventy-three thousand, one hundred sixty-eight".