38938477 has 4 divisors (see below), whose sum is σ = 39302496. Its totient is φ = 38574460.

The previous prime is 38938469. The next prime is 38938481. The reversal of 38938477 is 77483983.

38938477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77483983 = 3467 ⋅22349.

It is a cyclic number.

It is not a de Polignac number, because 38938477 - 2³ = 38938469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38938477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38938877) 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 3 ways as a sum of consecutive naturals, for example, 181849 + ... + 182062.

It is an arithmetic number, because the mean of its divisors is an integer number (9825624).

Almost surely, 2^38938477 is an apocalyptic number.

It is an amenable number.

38938477 is a deficient number, since it is larger than the sum of its proper divisors (364019).

38938477 is a wasteful number, since it uses less digits than its factorization.

38938477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364018.

The product of its digits is 1016064, while the sum is 49.

The square root of 38938477 is about 6240.0702720402. The cubic root of 38938477 is about 338.9427277994.

The spelling of 38938477 in words is "thirty-eight million, nine hundred thirty-eight thousand, four hundred seventy-seven".