78029872 has 10 divisors (see below), whose sum is σ = 151182908. Its totient is φ = 39014928.

The previous prime is 78029863. The next prime is 78029891. The reversal of 78029872 is 27892087.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2438418 + ... + 2438449.

Almost surely, 2^78029872 is an apocalyptic number.

It is an amenable number.

78029872 is a deficient number, since it is larger than the sum of its proper divisors (73153036).

78029872 is a wasteful number, since it uses less digits than its factorization.

78029872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876875 (or 4876869 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 78029872 is about 8833.4518734185. The cubic root of 78029872 is about 427.3204051656.

The spelling of 78029872 in words is "seventy-eight million, twenty-nine thousand, eight hundred seventy-two".