37984489 has 2 divisors, whose sum is σ = 37984490. Its totient is φ = 37984488.

The previous prime is 37984481. The next prime is 37984571. The reversal of 37984489 is 98448973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34904464 + 3080025 = 5908^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 37984489 - 2³ = 37984481 is a prime.

It is a super-2 number, since 2×37984489² = 2885642809182242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37984481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18992244 + 18992245.

It is an arithmetic number, because the mean of its divisors is an integer number (18992245).

Almost surely, 2^37984489 is an apocalyptic number.

It is an amenable number.

37984489 is a deficient number, since it is larger than the sum of its proper divisors (1).

37984489 is an equidigital number, since it uses as much as digits as its factorization.

37984489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 37984489 is about 6163.1557663262. The cubic root of 37984489 is about 336.1517909453.

The spelling of 37984489 in words is "thirty-seven million, nine hundred eighty-four thousand, four hundred eighty-nine".