78679053 has 16 divisors (see below), whose sum is σ = 116920960. Its totient is φ = 52291008.

The previous prime is 78679033. The next prime is 78679061. The reversal of 78679053 is 35097687.

It is a happy number.

It is not a de Polignac number, because 78679053 - 2⁶ = 78678989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78679033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4776 + ... + 13422.

It is an arithmetic number, because the mean of its divisors is an integer number (7307560).

Almost surely, 2^78679053 is an apocalyptic number.

It is an amenable number.

78679053 is a deficient number, since it is larger than the sum of its proper divisors (38241907).

78679053 is a wasteful number, since it uses less digits than its factorization.

78679053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993 (or 8987 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 78679053 is about 8870.1213633185. The cubic root of 78679053 is about 428.5021855275.

The spelling of 78679053 in words is "seventy-eight million, six hundred seventy-nine thousand, fifty-three".