37385641 has 2 divisors, whose sum is σ = 37385642. Its totient is φ = 37385640.

The previous prime is 37385639. The next prime is 37385657. The reversal of 37385641 is 14658373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24960016 + 12425625 = 4996^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 37385641 - 2¹ = 37385639 is a prime.

Together with 37385639, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 37385641.

It is not a weakly prime, because it can be changed into another prime (37385671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18692820 + 18692821.

It is an arithmetic number, because the mean of its divisors is an integer number (18692821).

Almost surely, 2^37385641 is an apocalyptic number.

It is an amenable number.

37385641 is a deficient number, since it is larger than the sum of its proper divisors (1).

37385641 is an equidigital number, since it uses as much as digits as its factorization.

37385641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 37385641 is about 6114.3798540817. The cubic root of 37385641 is about 334.3758811052.

The spelling of 37385641 in words is "thirty-seven million, three hundred eighty-five thousand, six hundred forty-one".