38231797 has 2 divisors, whose sum is σ = 38231798. Its totient is φ = 38231796.

The previous prime is 38231777. The next prime is 38231801. The reversal of 38231797 is 79713283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37527876 + 703921 = 6126^2 + 839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38231797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38231707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19115898 + 19115899.

It is an arithmetic number, because the mean of its divisors is an integer number (19115899).

Almost surely, 2^38231797 is an apocalyptic number.

It is an amenable number.

38231797 is a deficient number, since it is larger than the sum of its proper divisors (1).

38231797 is an equidigital number, since it uses as much as digits as its factorization.

38231797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 38231797 is about 6183.1866379724. The cubic root of 38231797 is about 336.8797482358.

The spelling of 38231797 in words is "thirty-eight million, two hundred thirty-one thousand, seven hundred ninety-seven".