38399937 has 8 divisors (see below), whose sum is σ = 51670080. Its totient is φ = 25364880.

The previous prime is 38399929. The next prime is 38399939. The reversal of 38399937 is 73999383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38399937 - 2³ = 38399929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38399937.

It is not an unprimeable number, because it can be changed into a prime (38399939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58389 + ... + 59042.

It is an arithmetic number, because the mean of its divisors is an integer number (6458760).

Almost surely, 2^38399937 is an apocalyptic number.

It is an amenable number.

38399937 is a deficient number, since it is larger than the sum of its proper divisors (13270143).

38399937 is a wasteful number, since it uses less digits than its factorization.

38399937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117543.

The product of its digits is 1102248, while the sum is 51.

The square root of 38399937 is about 6196.7682706391. The cubic root of 38399937 is about 337.3728816197.

The spelling of 38399937 in words is "thirty-eight million, three hundred ninety-nine thousand, nine hundred thirty-seven".