468661721 has 32 divisors (see below), whose sum is σ = 553219200. Its totient is φ = 392878080.

The previous prime is 468661681. The next prime is 468661723. The reversal of 468661721 is 127166864.

It is not a de Polignac number, because 468661721 - 2²² = 464467417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468661723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696041 + ... + 696713.

It is an arithmetic number, because the mean of its divisors is an integer number (17288100).

Almost surely, 2^468661721 is an apocalyptic number.

It is an amenable number.

468661721 is a deficient number, since it is larger than the sum of its proper divisors (84557479).

468661721 is a wasteful number, since it uses less digits than its factorization.

468661721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 96768, while the sum is 41.

The square root of 468661721 is about 21648.5962824383. The cubic root of 468661721 is about 776.7593583818.

The spelling of 468661721 in words is "four hundred sixty-eight million, six hundred sixty-one thousand, seven hundred twenty-one".