38956397 has 4 divisors (see below), whose sum is σ = 38974656. Its totient is φ = 38938140.

The previous prime is 38956391. The next prime is 38956399. The reversal of 38956397 is 79365983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38956397 - 2⁴ = 38956381 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38956391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5429 + ... + 10362.

It is an arithmetic number, because the mean of its divisors is an integer number (9743664).

Almost surely, 2^38956397 is an apocalyptic number.

It is an amenable number.

38956397 is a deficient number, since it is larger than the sum of its proper divisors (18259).

38956397 is a wasteful number, since it uses less digits than its factorization.

38956397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18258.

The product of its digits is 1224720, while the sum is 50.

The square root of 38956397 is about 6241.5059881410. The cubic root of 38956397 is about 338.9947151278.

The spelling of 38956397 in words is "thirty-eight million, nine hundred fifty-six thousand, three hundred ninety-seven".