37997899 has 2 divisors, whose sum is σ = 37997900. Its totient is φ = 37997898.

The previous prime is 37997881. The next prime is 37997923. The reversal of 37997899 is 99879973.

37997899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37997899 - 2¹¹ = 37995851 is a prime.

It is not a weakly prime, because it can be changed into another prime (37997809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18998949 + 18998950.

It is an arithmetic number, because the mean of its divisors is an integer number (18998950).

Almost surely, 2^37997899 is an apocalyptic number.

37997899 is a deficient number, since it is larger than the sum of its proper divisors (1).

37997899 is an equidigital number, since it uses as much as digits as its factorization.

37997899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7715736, while the sum is 61.

The square root of 37997899 is about 6164.2435870105. The cubic root of 37997899 is about 336.1913445040.

The spelling of 37997899 in words is "thirty-seven million, nine hundred ninety-seven thousand, eight hundred ninety-nine".