469426721 has 2 divisors, whose sum is σ = 469426722. Its totient is φ = 469426720.

The previous prime is 469426717. The next prime is 469426751. The reversal of 469426721 is 127624964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251539600 + 217887121 = 15860^2 + 14761^2 .

It is a cyclic number.

It is not a de Polignac number, because 469426721 - 2² = 469426717 is a prime.

It is a super-2 number, since 2×469426721² = 440722892777623682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (469426751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234713360 + 234713361.

It is an arithmetic number, because the mean of its divisors is an integer number (234713361).

Almost surely, 2^469426721 is an apocalyptic number.

It is an amenable number.

469426721 is a deficient number, since it is larger than the sum of its proper divisors (1).

469426721 is an equidigital number, since it uses as much as digits as its factorization.

469426721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 469426721 is about 21666.2576602421. The cubic root of 469426721 is about 777.1817653180.

The spelling of 469426721 in words is "four hundred sixty-nine million, four hundred twenty-six thousand, seven hundred twenty-one".