37044991 has 2 divisors, whose sum is σ = 37044992. Its totient is φ = 37044990.

The previous prime is 37044971. The next prime is 37045007. The reversal of 37044991 is 19944073.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 37044991 - 2⁷ = 37044863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37044991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37044911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18522495 + 18522496.

It is an arithmetic number, because the mean of its divisors is an integer number (18522496).

Almost surely, 2^37044991 is an apocalyptic number.

37044991 is a deficient number, since it is larger than the sum of its proper divisors (1).

37044991 is an equidigital number, since it uses as much as digits as its factorization.

37044991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 37044991 is about 6086.4596441610. The cubic root of 37044991 is about 333.3571935143.

The spelling of 37044991 in words is "thirty-seven million, forty-four thousand, nine hundred ninety-one".