461872731 has 8 divisors (see below), whose sum is σ = 618120720. Its totient is φ = 306769952.

The previous prime is 461872717. The next prime is 461872753. The reversal of 461872731 is 137278164.

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 461872731 - 2⁹ = 461872219 is a prime.

It is a super-2 number, since 2×461872731² = 426652839282796722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 461872731.

It is not an unprimeable number, because it can be changed into a prime (461872781) 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, 285360 + ... + 286973.

It is an arithmetic number, because the mean of its divisors is an integer number (77265090).

Almost surely, 2^461872731 is an apocalyptic number.

461872731 is a deficient number, since it is larger than the sum of its proper divisors (156247989).

461872731 is a wasteful number, since it uses less digits than its factorization.

461872731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572605.

The product of its digits is 56448, while the sum is 39.

The square root of 461872731 is about 21491.2245114140. The cubic root of 461872731 is about 772.9904126198.

The spelling of 461872731 in words is "four hundred sixty-one million, eight hundred seventy-two thousand, seven hundred thirty-one".