38870447 has 24 divisors (see below), whose sum is σ = 51327360. Its totient is φ = 28518480.

The previous prime is 38870443. The next prime is 38870467. The reversal of 38870447 is 74407883.

It is not a de Polignac number, because 38870447 - 2² = 38870443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238388 + ... + 238550.

It is an arithmetic number, because the mean of its divisors is an integer number (2138640).

Almost surely, 2^38870447 is an apocalyptic number.

38870447 is a deficient number, since it is larger than the sum of its proper divisors (12456913).

38870447 is a wasteful number, since it uses less digits than its factorization.

38870447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 38870447 is about 6234.6168286431. The cubic root of 38870447 is about 338.7452220837.

The spelling of 38870447 in words is "thirty-eight million, eight hundred seventy thousand, four hundred forty-seven".