38871747 has 12 divisors (see below), whose sum is σ = 56444544. Its totient is φ = 25777680.

The previous prime is 38871733. The next prime is 38871757. The reversal of 38871747 is 74717883.

It is a happy number.

It is not a de Polignac number, because 38871747 - 2¹⁰ = 38870723 is a prime.

It is a super-2 number, since 2×38871747² = 3022025429664018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38871757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9588 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (4703712).

Almost surely, 2^38871747 is an apocalyptic number.

38871747 is a deficient number, since it is larger than the sum of its proper divisors (17572797).

38871747 is a wasteful number, since it uses less digits than its factorization.

38871747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22810 (or 22807 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 38871747 is about 6234.7210843790. The cubic root of 38871747 is about 338.7489984221.

The spelling of 38871747 in words is "thirty-eight million, eight hundred seventy-one thousand, seven hundred forty-seven".