37990979 has 4 divisors (see below), whose sum is σ = 40913376. Its totient is φ = 35068584.

The previous prime is 37990961. The next prime is 37990991. The reversal of 37990979 is 97909973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97909973 = 7 ⋅13987139.

It is a cyclic number.

It is not a de Polignac number, because 37990979 - 2¹⁶ = 37925443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37990979.

It is not an unprimeable number, because it can be changed into a prime (37990079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461179 + ... + 1461204.

It is an arithmetic number, because the mean of its divisors is an integer number (10228344).

Almost surely, 2^37990979 is an apocalyptic number.

37990979 is a deficient number, since it is larger than the sum of its proper divisors (2922397).

37990979 is a wasteful number, since it uses less digits than its factorization.

37990979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922396.

The product of its (nonzero) digits is 964467, while the sum is 53.

The square root of 37990979 is about 6163.6822598184. The cubic root of 37990979 is about 336.1709347322.

The spelling of 37990979 in words is "thirty-seven million, nine hundred ninety thousand, nine hundred seventy-nine".