38630957 has 2 divisors, whose sum is σ = 38630958. Its totient is φ = 38630956.

The previous prime is 38630951. The next prime is 38630981. The reversal of 38630957 is 75903683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 17161 = 6214^2 + 131^2 .

It is an emirp because it is prime and its reverse (75903683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38630957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38630951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19315478 + 19315479.

It is an arithmetic number, because the mean of its divisors is an integer number (19315479).

Almost surely, 2^38630957 is an apocalyptic number.

It is an amenable number.

38630957 is a deficient number, since it is larger than the sum of its proper divisors (1).

38630957 is an equidigital number, since it uses as much as digits as its factorization.

38630957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 38630957 is about 6215.3806802158. The cubic root of 38630957 is about 338.0480919630.

The spelling of 38630957 in words is "thirty-eight million, six hundred thirty thousand, nine hundred fifty-seven".