37400989 has 2 divisors, whose sum is σ = 37400990. Its totient is φ = 37400988.

The previous prime is 37400977. The next prime is 37400999. The reversal of 37400989 is 98900473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36060025 + 1340964 = 6005^2 + 1158^2 .

It is a cyclic number.

It is not a de Polignac number, because 37400989 - 2¹¹ = 37398941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37400929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18700494 + 18700495.

It is an arithmetic number, because the mean of its divisors is an integer number (18700495).

Almost surely, 2^37400989 is an apocalyptic number.

It is an amenable number.

37400989 is a deficient number, since it is larger than the sum of its proper divisors (1).

37400989 is an equidigital number, since it uses as much as digits as its factorization.

37400989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 37400989 is about 6115.6347994301. The cubic root of 37400989 is about 334.4216321722.

The spelling of 37400989 in words is "thirty-seven million, four hundred thousand, nine hundred eighty-nine".