500139407 has 8 divisors (see below), whose sum is σ = 518981760. Its totient is φ = 481624920.

The previous prime is 500139403. The next prime is 500139433. The reversal of 500139407 is 704931005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 500139407 - 2² = 500139403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 500139407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500139403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78857 + ... + 84962.

It is an arithmetic number, because the mean of its divisors is an integer number (64872720).

Almost surely, 2^500139407 is an apocalyptic number.

500139407 is a deficient number, since it is larger than the sum of its proper divisors (18842353).

500139407 is a wasteful number, since it uses less digits than its factorization.

500139407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163933.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 500139407 is about 22363.7967930314. The cubic root of 500139407 is about 793.7742840691.

The spelling of 500139407 in words is "five hundred million, one hundred thirty-nine thousand, four hundred seven".