37987541 has 2 divisors, whose sum is σ = 37987542. Its totient is φ = 37987540.

The previous prime is 37987531. The next prime is 37987553. The reversal of 37987541 is 14578973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34456900 + 3530641 = 5870^2 + 1879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37987541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 37987492 and 37987501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37987501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18993770 + 18993771.

It is an arithmetic number, because the mean of its divisors is an integer number (18993771).

Almost surely, 2^37987541 is an apocalyptic number.

It is an amenable number.

37987541 is a deficient number, since it is larger than the sum of its proper divisors (1).

37987541 is an equidigital number, since it uses as much as digits as its factorization.

37987541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 37987541 is about 6163.4033617799. The cubic root of 37987541 is about 336.1607938113.

The spelling of 37987541 in words is "thirty-seven million, nine hundred eighty-seven thousand, five hundred forty-one".