61373979 has 12 divisors (see below), whose sum is σ = 88938616. Its totient is φ = 40783392.

The previous prime is 61373953. The next prime is 61373981. The reversal of 61373979 is 97937316.

It is not a de Polignac number, because 61373979 - 2⁹ = 61373467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61373479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8077 + ... + 13710.

Almost surely, 2^61373979 is an apocalyptic number.

61373979 is a deficient number, since it is larger than the sum of its proper divisors (27564637).

61373979 is a wasteful number, since it uses less digits than its factorization.

61373979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22106 (or 22103 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 61373979 is about 7834.1546448867. The cubic root of 61373979 is about 394.4525428800.

The spelling of 61373979 in words is "sixty-one million, three hundred seventy-three thousand, nine hundred seventy-nine".