38933839 has 4 divisors (see below), whose sum is σ = 44495824. Its totient is φ = 33371856.

The previous prime is 38933837. The next prime is 38933891. The reversal of 38933839 is 93833983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38933839 - 2¹ = 38933837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38933837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780982 + ... + 2780995.

It is an arithmetic number, because the mean of its divisors is an integer number (11123956).

Almost surely, 2^38933839 is an apocalyptic number.

38933839 is a deficient number, since it is larger than the sum of its proper divisors (5561985).

38933839 is an equidigital number, since it uses as much as digits as its factorization.

38933839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561984.

The product of its digits is 419904, while the sum is 46.

The square root of 38933839 is about 6239.6986305430. The cubic root of 38933839 is about 338.9292699987.

The spelling of 38933839 in words is "thirty-eight million, nine hundred thirty-three thousand, eight hundred thirty-nine".