38477939 has 4 divisors (see below), whose sum is σ = 38509080. Its totient is φ = 38446800.

The previous prime is 38477927. The next prime is 38477941. The reversal of 38477939 is 93977483.

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 38477939 - 2¹² = 38473843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38477339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13637 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (9627270).

Almost surely, 2^38477939 is an apocalyptic number.

38477939 is a deficient number, since it is larger than the sum of its proper divisors (31141).

38477939 is a wasteful number, since it uses less digits than its factorization.

38477939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140.

The product of its digits is 1143072, while the sum is 50.

The square root of 38477939 is about 6203.0588422165. The cubic root of 38477939 is about 337.6011629069.

The spelling of 38477939 in words is "thirty-eight million, four hundred seventy-seven thousand, nine hundred thirty-nine".