464977921 has 2 divisors, whose sum is σ = 464977922. Its totient is φ = 464977920.

The previous prime is 464977901. The next prime is 464977949. The reversal of 464977921 is 129779464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320016321 + 144961600 = 17889^2 + 12040^2 .

It is a cyclic number.

It is not a de Polignac number, because 464977921 - 2⁵ = 464977889 is a prime.

It is not a weakly prime, because it can be changed into another prime (464977901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232488960 + 232488961.

It is an arithmetic number, because the mean of its divisors is an integer number (232488961).

It is a Proth number, since it is equal to 7095 ⋅ 2¹⁶ + 1 and 7095 < 2¹⁶.

Almost surely, 2^464977921 is an apocalyptic number.

It is an amenable number.

464977921 is a deficient number, since it is larger than the sum of its proper divisors (1).

464977921 is an equidigital number, since it uses as much as digits as its factorization.

464977921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 464977921 is about 21563.3467022167. The cubic root of 464977921 is about 774.7188274505.

The spelling of 464977921 in words is "four hundred sixty-four million, nine hundred seventy-seven thousand, nine hundred twenty-one".