38724867 has 6 divisors (see below), whose sum is σ = 55935932. Its totient is φ = 25816572.

The previous prime is 38724863. The next prime is 38724883. The reversal of 38724867 is 76842783.

It is a happy number.

It is not a de Polignac number, because 38724867 - 2² = 38724863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38724863) 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, 2151373 + ... + 2151390.

Almost surely, 2^38724867 is an apocalyptic number.

38724867 is a deficient number, since it is larger than the sum of its proper divisors (17211065).

38724867 is a wasteful number, since it uses less digits than its factorization.

38724867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302769 (or 4302766 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 38724867 is about 6222.9307404148. The cubic root of 38724867 is about 338.3217965172.

The spelling of 38724867 in words is "thirty-eight million, seven hundred twenty-four thousand, eight hundred sixty-seven".