38634739 has 16 divisors (see below), whose sum is σ = 46023264. Its totient is φ = 31968000.

The previous prime is 38634737. The next prime is 38634763. The reversal of 38634739 is 93743683.

38634739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38634739 - 2¹ = 38634737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38634695 and 38634704.

It is not an unprimeable number, because it can be changed into a prime (38634731) 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 in 15 ways as a sum of consecutive naturals, for example, 8589 + ... + 12289.

It is an arithmetic number, because the mean of its divisors is an integer number (2876454).

Almost surely, 2^38634739 is an apocalyptic number.

38634739 is a deficient number, since it is larger than the sum of its proper divisors (7388525).

38634739 is a wasteful number, since it uses less digits than its factorization.

38634739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798.

The product of its digits is 326592, while the sum is 43.

The square root of 38634739 is about 6215.6849180119. The cubic root of 38634739 is about 338.0591233246.

The spelling of 38634739 in words is "thirty-eight million, six hundred thirty-four thousand, seven hundred thirty-nine".