38892157 has 2 divisors, whose sum is σ = 38892158. Its totient is φ = 38892156.

The previous prime is 38892131. The next prime is 38892179. The reversal of 38892157 is 75129883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20693401 + 18198756 = 4549^2 + 4266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38892157 is a prime.

It is a super-2 number, since 2×38892157² = 3025199752225298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38892187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19446078 + 19446079.

It is an arithmetic number, because the mean of its divisors is an integer number (19446079).

Almost surely, 2^38892157 is an apocalyptic number.

It is an amenable number.

38892157 is a deficient number, since it is larger than the sum of its proper divisors (1).

38892157 is an equidigital number, since it uses as much as digits as its factorization.

38892157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 38892157 is about 6236.3576709486. The cubic root of 38892157 is about 338.8082758998.

The spelling of 38892157 in words is "thirty-eight million, eight hundred ninety-two thousand, one hundred fifty-seven".