38947473 has 20 divisors (see below), whose sum is σ = 61245360. Its totient is φ = 24597432.

The previous prime is 38947457. The next prime is 38947477. The reversal of 38947473 is 37474983.

It is a happy number.

It is not a de Polignac number, because 38947473 - 2⁴ = 38947457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38947477) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11115 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (3062268).

Almost surely, 2^38947473 is an apocalyptic number.

It is an amenable number.

38947473 is a deficient number, since it is larger than the sum of its proper divisors (22297887).

38947473 is a wasteful number, since it uses less digits than its factorization.

38947473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25338 (or 25329 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 38947473 is about 6240.7910556275. The cubic root of 38947473 is about 338.9688278957.

The spelling of 38947473 in words is "thirty-eight million, nine hundred forty-seven thousand, four hundred seventy-three".