964888409 has 2 divisors, whose sum is σ = 964888410. Its totient is φ = 964888408.

The previous prime is 964888403. The next prime is 964888459. The reversal of 964888409 is 904888469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720654025 + 244234384 = 26845^2 + 15628^2 .

It is a cyclic number.

It is not a de Polignac number, because 964888409 - 2²⁴ = 948111193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (964888403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482444204 + 482444205.

It is an arithmetic number, because the mean of its divisors is an integer number (482444205).

Almost surely, 2^964888409 is an apocalyptic number.

It is an amenable number.

964888409 is a deficient number, since it is larger than the sum of its proper divisors (1).

964888409 is an equidigital number, since it uses as much as digits as its factorization.

964888409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The square root of 964888409 is about 31062.6529613940. The cubic root of 964888409 is about 988.1564197071.

The spelling of 964888409 in words is "nine hundred sixty-four million, eight hundred eighty-eight thousand, four hundred nine".