38799391 has 4 divisors (see below), whose sum is σ = 38874384. Its totient is φ = 38724400.

The previous prime is 38799337. The next prime is 38799401. The reversal of 38799391 is 19399783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38799391 - 2¹⁹ = 38275103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38799991) 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, 36715 + ... + 37756.

It is an arithmetic number, because the mean of its divisors is an integer number (9718596).

Almost surely, 2^38799391 is an apocalyptic number.

38799391 is a deficient number, since it is larger than the sum of its proper divisors (74993).

38799391 is an equidigital number, since it uses as much as digits as its factorization.

38799391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74992.

The product of its digits is 367416, while the sum is 49.

The square root of 38799391 is about 6228.9157162383. The cubic root of 38799391 is about 338.5386850355.

The spelling of 38799391 in words is "thirty-eight million, seven hundred ninety-nine thousand, three hundred ninety-one".