507861247 has 8 divisors (see below), whose sum is σ = 538662096. Its totient is φ = 477163392.

The previous prime is 507861239. The next prime is 507861257. The reversal of 507861247 is 742168705.

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 507861247 - 2³ = 507861239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507861257) 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, 15468 + ... + 35425.

It is an arithmetic number, because the mean of its divisors is an integer number (67332762).

Almost surely, 2^507861247 is an apocalyptic number.

507861247 is a deficient number, since it is larger than the sum of its proper divisors (30800849).

507861247 is a wasteful number, since it uses less digits than its factorization.

507861247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51497.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 507861247 is about 22535.7770445130. Note that the first 3 decimals coincide. The cubic root of 507861247 is about 797.8385649868.

The spelling of 507861247 in words is "five hundred seven million, eight hundred sixty-one thousand, two hundred forty-seven".