38999879 has 8 divisors (see below), whose sum is σ = 39443712. Its totient is φ = 38558520.

The previous prime is 38999861. The next prime is 38999903. The reversal of 38999879 is 97899983.

38999879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38999879 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 (38999579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60332 + ... + 60974.

It is an arithmetic number, because the mean of its divisors is an integer number (4930464).

Almost surely, 2^38999879 is an apocalyptic number.

38999879 is a deficient number, since it is larger than the sum of its proper divisors (443833).

38999879 is a wasteful number, since it uses less digits than its factorization.

38999879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its digits is 8817984, while the sum is 62.

The square root of 38999879 is about 6244.9883106376. The cubic root of 38999879 is about 339.1207935860.

The spelling of 38999879 in words is "thirty-eight million, nine hundred ninety-nine thousand, eight hundred seventy-nine".