39399506 has 16 divisors (see below), whose sum is σ = 65297664. Its totient is φ = 17734464.

The previous prime is 39399497. The next prime is 39399527. The reversal of 39399506 is 60599393.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24410 + ... + 25973.

It is an arithmetic number, because the mean of its divisors is an integer number (4081104).

Almost surely, 2^39399506 is an apocalyptic number.

39399506 is a deficient number, since it is larger than the sum of its proper divisors (25898158).

39399506 is a wasteful number, since it uses less digits than its factorization.

39399506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50425.

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 39399506 is about 6276.9025800947. The cubic root of 39399506 is about 340.2751693962.

It can be divided in two parts, 393 and 99506, that added together give a palindrome (99899).

The spelling of 39399506 in words is "thirty-nine million, three hundred ninety-nine thousand, five hundred six".