37996939 has 2 divisors, whose sum is σ = 37996940. Its totient is φ = 37996938.

The previous prime is 37996913. The next prime is 37996949. The reversal of 37996939 is 93969973.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 37996939 - 2⁷ = 37996811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37996939.

It is not a weakly prime, because it can be changed into another prime (37996909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18998469 + 18998470.

It is an arithmetic number, because the mean of its divisors is an integer number (18998470).

Almost surely, 2^37996939 is an apocalyptic number.

37996939 is a deficient number, since it is larger than the sum of its proper divisors (1).

37996939 is an equidigital number, since it uses as much as digits as its factorization.

37996939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2480058, while the sum is 55.

The square root of 37996939 is about 6164.1657180838. The cubic root of 37996939 is about 336.1885132386.

The spelling of 37996939 in words is "thirty-seven million, nine hundred ninety-six thousand, nine hundred thirty-nine".