78679075 has 12 divisors (see below), whose sum is σ = 98428968. Its totient is φ = 62384000.

The previous prime is 78679063. The next prime is 78679091. The reversal of 78679075 is 57097687.

It is not a de Polignac number, because 78679075 - 2⁷ = 78678947 is a prime.

It is a Duffinian number.

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, 11101 + ... + 16750.

It is an arithmetic number, because the mean of its divisors is an integer number (8202414).

Almost surely, 2^78679075 is an apocalyptic number.

78679075 is a deficient number, since it is larger than the sum of its proper divisors (19749893).

78679075 is a wasteful number, since it uses less digits than its factorization.

78679075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27974 (or 27969 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 78679075 is about 8870.1226034368. The cubic root of 78679075 is about 428.5022254663.

The spelling of 78679075 in words is "seventy-eight million, six hundred seventy-nine thousand, seventy-five".