38513897 has 2 divisors, whose sum is σ = 38513898. Its totient is φ = 38513896.

The previous prime is 38513837. The next prime is 38513911. The reversal of 38513897 is 79831583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38204761 + 309136 = 6181^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 38513897 - 2⁶ = 38513833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38513837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19256948 + 19256949.

It is an arithmetic number, because the mean of its divisors is an integer number (19256949).

Almost surely, 2^38513897 is an apocalyptic number.

It is an amenable number.

38513897 is a deficient number, since it is larger than the sum of its proper divisors (1).

38513897 is an equidigital number, since it uses as much as digits as its factorization.

38513897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 38513897 is about 6205.9565741310. The cubic root of 38513897 is about 337.7062939977.

The spelling of 38513897 in words is "thirty-eight million, five hundred thirteen thousand, eight hundred ninety-seven".