79660379 has 4 divisors (see below), whose sum is σ = 79813800. Its totient is φ = 79506960.

The previous prime is 79660349. The next prime is 79660391. The reversal of 79660379 is 97306697.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79660379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79660319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75929 + ... + 76970.

It is an arithmetic number, because the mean of its divisors is an integer number (19953450).

Almost surely, 2^79660379 is an apocalyptic number.

79660379 is a deficient number, since it is larger than the sum of its proper divisors (153421).

79660379 is a wasteful number, since it uses less digits than its factorization.

79660379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153420.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 79660379 is about 8925.2663265586. The cubic root of 79660379 is about 430.2763304064.

The spelling of 79660379 in words is "seventy-nine million, six hundred sixty thousand, three hundred seventy-nine".