79656674 has 4 divisors (see below), whose sum is σ = 119485014. Its totient is φ = 39828336.

The previous prime is 79656673. The next prime is 79656737. The reversal of 79656674 is 47665697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47665697 = 523 ⋅91139.

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 16056049 = 7975^2 + 4007^2 .

It is not an unprimeable number, because it can be changed into a prime (79656673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19914167 + ... + 19914170.

Almost surely, 2^79656674 is an apocalyptic number.

79656674 is a deficient number, since it is larger than the sum of its proper divisors (39828340).

79656674 is a wasteful number, since it uses less digits than its factorization.

79656674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39828339.

The product of its digits is 1905120, while the sum is 50.

The square root of 79656674 is about 8925.0587673135. The cubic root of 79656674 is about 430.2696595932.

The spelling of 79656674 in words is "seventy-nine million, six hundred fifty-six thousand, six hundred seventy-four".