38479631 has 2 divisors, whose sum is σ = 38479632. Its totient is φ = 38479630.

The previous prime is 38479613. The next prime is 38479681. The reversal of 38479631 is 13697483.

38479631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (38479613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38479631 - 2¹⁰ = 38478607 is a prime.

It is a super-2 number, since 2×38479631² = 2961364003792322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38479681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19239815 + 19239816.

It is an arithmetic number, because the mean of its divisors is an integer number (19239816).

Almost surely, 2^38479631 is an apocalyptic number.

38479631 is a deficient number, since it is larger than the sum of its proper divisors (1).

38479631 is an equidigital number, since it uses as much as digits as its factorization.

38479631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 38479631 is about 6203.1952250433. The cubic root of 38479631 is about 337.6061113078.

The spelling of 38479631 in words is "thirty-eight million, four hundred seventy-nine thousand, six hundred thirty-one".