37638983 has 2 divisors, whose sum is σ = 37638984. Its totient is φ = 37638982.

The previous prime is 37638967. The next prime is 37639031. The reversal of 37638983 is 38983673.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37638983 - 2⁴ = 37638967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37638883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18819491 + 18819492.

It is an arithmetic number, because the mean of its divisors is an integer number (18819492).

Almost surely, 2^37638983 is an apocalyptic number.

37638983 is a deficient number, since it is larger than the sum of its proper divisors (1).

37638983 is an equidigital number, since it uses as much as digits as its factorization.

37638983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 37638983 is about 6135.0617763801. The cubic root of 37638983 is about 335.1294754589.

The spelling of 37638983 in words is "thirty-seven million, six hundred thirty-eight thousand, nine hundred eighty-three".