461791591 has 8 divisors (see below), whose sum is σ = 472824000. Its totient is φ = 450809568.

The previous prime is 461791571. The next prime is 461791607. The reversal of 461791591 is 195197164.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461791591 is a prime.

It is a super-2 number, since 2×461791591² = 426502947036622562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461791571) 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, 6285 + ... + 31033.

It is an arithmetic number, because the mean of its divisors is an integer number (59103000).

Almost surely, 2^461791591 is an apocalyptic number.

461791591 is a deficient number, since it is larger than the sum of its proper divisors (11032409).

461791591 is a wasteful number, since it uses less digits than its factorization.

461791591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25193.

The product of its digits is 68040, while the sum is 43.

The square root of 461791591 is about 21489.3366812473. The cubic root of 461791591 is about 772.9451446552.

The spelling of 461791591 in words is "four hundred sixty-one million, seven hundred ninety-one thousand, five hundred ninety-one".