79389946 has 16 divisors (see below), whose sum is σ = 123349248. Its totient is φ = 38282400.

The previous prime is 79389943. The next prime is 79389953. The reversal of 79389946 is 64998397.

It is not an unprimeable number, because it can be changed into a prime (79389943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17361 + ... + 21451.

It is an arithmetic number, because the mean of its divisors is an integer number (7709328).

Almost surely, 2^79389946 is an apocalyptic number.

79389946 is a deficient number, since it is larger than the sum of its proper divisors (43959302).

79389946 is a wasteful number, since it uses less digits than its factorization.

79389946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437.

The product of its digits is 2939328, while the sum is 55.

The square root of 79389946 is about 8910.1035908681. The cubic root of 79389946 is about 429.7888741821.

The spelling of 79389946 in words is "seventy-nine million, three hundred eighty-nine thousand, nine hundred forty-six".