38361397 has 2 divisors, whose sum is σ = 38361398. Its totient is φ = 38361396.

The previous prime is 38361377. The next prime is 38361431. The reversal of 38361397 is 79316383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32787076 + 5574321 = 5726^2 + 2361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38361397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38361377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19180698 + 19180699.

It is an arithmetic number, because the mean of its divisors is an integer number (19180699).

Almost surely, 2^38361397 is an apocalyptic number.

It is an amenable number.

38361397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38361397 is an equidigital number, since it uses as much as digits as its factorization.

38361397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 40.

The square root of 38361397 is about 6193.6578045610. The cubic root of 38361397 is about 337.2599760247.

The spelling of 38361397 in words is "thirty-eight million, three hundred sixty-one thousand, three hundred ninety-seven".