461172247 has 4 divisors (see below), whose sum is σ = 465482376. Its totient is φ = 456862120.

The previous prime is 461172227. The next prime is 461172289. The reversal of 461172247 is 742271164.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 461172247 - 2¹⁵ = 461139479 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 (461172227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2154904 + ... + 2155117.

It is an arithmetic number, because the mean of its divisors is an integer number (116370594).

Almost surely, 2^461172247 is an apocalyptic number.

461172247 is a deficient number, since it is larger than the sum of its proper divisors (4310129).

461172247 is a wasteful number, since it uses less digits than its factorization.

461172247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310128.

The product of its digits is 18816, while the sum is 34.

The square root of 461172247 is about 21474.9213502634. The cubic root of 461172247 is about 772.5994381200.

The spelling of 461172247 in words is "four hundred sixty-one million, one hundred seventy-two thousand, two hundred forty-seven".