964721 has 2 divisors, whose sum is σ = 964722. Its totient is φ = 964720.

The previous prime is 964703. The next prime is 964753. The reversal of 964721 is 127469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 474721 = 700^2 + 689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964721 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 964721.

It is not a weakly prime, because it can be changed into another prime (964021) 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, 482360 + 482361.

It is an arithmetic number, because the mean of its divisors is an integer number (482361).

2⁹⁶⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

964721 is a deficient number, since it is larger than the sum of its proper divisors (1).

964721 is an equidigital number, since it uses as much as digits as its factorization.

964721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 964721 is about 982.2021176927. The cubic root of 964721 is about 98.8099267728.

The spelling of 964721 in words is "nine hundred sixty-four thousand, seven hundred twenty-one".