507872407 has 12 divisors (see below), whose sum is σ = 616478256. Its totient is φ = 416391360.

The previous prime is 507872383. The next prime is 507872423. The reversal of 507872407 is 704278705.

It is a de Polignac number, because none of the positive numbers 2^k-507872407 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 507872407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507872437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224194 + ... + 226447.

It is an arithmetic number, because the mean of its divisors is an integer number (51373188).

Almost surely, 2^507872407 is an apocalyptic number.

507872407 is a deficient number, since it is larger than the sum of its proper divisors (108605849).

507872407 is a wasteful number, since it uses less digits than its factorization.

507872407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450678 (or 450671 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 507872407 is about 22536.0246494363. The cubic root of 507872407 is about 797.8444089801.

The spelling of 507872407 in words is "five hundred seven million, eight hundred seventy-two thousand, four hundred seven".