468627721 has 2 divisors, whose sum is σ = 468627722. Its totient is φ = 468627720.

The previous prime is 468627697. The next prime is 468627743. The reversal of 468627721 is 127726864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468116496 + 511225 = 21636^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 468627721 - 2⁹ = 468627209 is a prime.

It is a super-2 number, since 2×468627721² = 439223881779307682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (468627221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234313860 + 234313861.

It is an arithmetic number, because the mean of its divisors is an integer number (234313861).

Almost surely, 2^468627721 is an apocalyptic number.

It is an amenable number.

468627721 is a deficient number, since it is larger than the sum of its proper divisors (1).

468627721 is an equidigital number, since it uses as much as digits as its factorization.

468627721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 43.

The square root of 468627721 is about 21647.8109978815. The cubic root of 468627721 is about 776.7405740749.

The spelling of 468627721 in words is "four hundred sixty-eight million, six hundred twenty-seven thousand, seven hundred twenty-one".