38398907 has 6 divisors (see below), whose sum is σ = 38652252. Its totient is φ = 38147192.

The previous prime is 38398897. The next prime is 38398967. The reversal of 38398907 is 70989383.

It is not a de Polignac number, because 38398907 - 2²² = 34204603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38398967) 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, 29288 + ... + 30570.

It is an arithmetic number, because the mean of its divisors is an integer number (6442042).

Almost surely, 2^38398907 is an apocalyptic number.

38398907 is a deficient number, since it is larger than the sum of its proper divisors (253345).

38398907 is an equidigital number, since it uses as much as digits as its factorization.

38398907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 38398907 is about 6196.6851622460. The cubic root of 38398907 is about 337.3698651462.

The spelling of 38398907 in words is "thirty-eight million, three hundred ninety-eight thousand, nine hundred seven".