464862221 has 2 divisors, whose sum is σ = 464862222. Its totient is φ = 464862220.

The previous prime is 464862193. The next prime is 464862253. The reversal of 464862221 is 122268464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456676900 + 8185321 = 21370^2 + 2861^2 .

It is a cyclic number.

It is not a de Polignac number, because 464862221 - 2⁶ = 464862157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464862271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232431110 + 232431111.

It is an arithmetic number, because the mean of its divisors is an integer number (232431111).

Almost surely, 2^464862221 is an apocalyptic number.

It is an amenable number.

464862221 is a deficient number, since it is larger than the sum of its proper divisors (1).

464862221 is an equidigital number, since it uses as much as digits as its factorization.

464862221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 35.

The square root of 464862221 is about 21560.6637421022. The cubic root of 464862221 is about 774.6545646114.

The spelling of 464862221 in words is "four hundred sixty-four million, eight hundred sixty-two thousand, two hundred twenty-one".