38412839 has 4 divisors (see below), whose sum is σ = 38643024. Its totient is φ = 38182656.

The previous prime is 38412827. The next prime is 38412853. The reversal of 38412839 is 93821483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93821483 = 7 ⋅13403069.

It is a cyclic number.

It is not a de Polignac number, because 38412839 - 2⁴ = 38412823 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 (38411839) 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, 114842 + ... + 115175.

It is an arithmetic number, because the mean of its divisors is an integer number (9660756).

Almost surely, 2^38412839 is an apocalyptic number.

38412839 is a deficient number, since it is larger than the sum of its proper divisors (230185).

38412839 is a wasteful number, since it uses less digits than its factorization.

38412839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230184.

The product of its digits is 41472, while the sum is 38.

The square root of 38412839 is about 6197.8092097127. The cubic root of 38412839 is about 337.4106620420.

The spelling of 38412839 in words is "thirty-eight million, four hundred twelve thousand, eight hundred thirty-nine".