79493930 has 16 divisors (see below), whose sum is σ = 148023720. Its totient is φ = 30700992.

The previous prime is 79493923. The next prime is 79493941. The reversal of 79493930 is 3939497.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73496329 + 5997601 = 8573^2 + 2449^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136769 + ... + 137348.

Almost surely, 2^79493930 is an apocalyptic number.

79493930 is a deficient number, since it is larger than the sum of its proper divisors (68529790).

79493930 is a wasteful number, since it uses less digits than its factorization.

79493930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274153.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 79493930 is about 8915.9368548684. The cubic root of 79493930 is about 429.9764364228.

The spelling of 79493930 in words is "seventy-nine million, four hundred ninety-three thousand, nine hundred thirty".