38157887 has 2 divisors, whose sum is σ = 38157888. Its totient is φ = 38157886.

The previous prime is 38157859. The next prime is 38157893. The reversal of 38157887 is 78875183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38157887 - 2⁸ = 38157631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38157817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19078943 + 19078944.

It is an arithmetic number, because the mean of its divisors is an integer number (19078944).

Almost surely, 2^38157887 is an apocalyptic number.

38157887 is a deficient number, since it is larger than the sum of its proper divisors (1).

38157887 is an equidigital number, since it uses as much as digits as its factorization.

38157887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 47.

The square root of 38157887 is about 6177.2070549723. The cubic root of 38157887 is about 336.6625220329.

The spelling of 38157887 in words is "thirty-eight million, one hundred fifty-seven thousand, eight hundred eighty-seven".