38913775 has 6 divisors (see below), whose sum is σ = 48253112. Its totient is φ = 31131000.

The previous prime is 38913739. The next prime is 38913779. The reversal of 38913775 is 57731983.

It is not a de Polignac number, because 38913775 - 2⁷ = 38913647 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 (38913779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778251 + ... + 778300.

Almost surely, 2^38913775 is an apocalyptic number.

38913775 is a deficient number, since it is larger than the sum of its proper divisors (9339337).

38913775 is a wasteful number, since it uses less digits than its factorization.

38913775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556561 (or 1556556 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 38913775 is about 6238.0906533971. The cubic root of 38913775 is about 338.8710392024.

The spelling of 38913775 in words is "thirty-eight million, nine hundred thirteen thousand, seven hundred seventy-five".