964452643 has 36 divisors (see below), whose sum is σ = 1259780256. Its totient is φ = 735319200.

The previous prime is 964452637. The next prime is 964452647. The reversal of 964452643 is 346254469.

It is a happy number.

964452643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 964452643 - 2⁵ = 964452611 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 964452643.

It is not an unprimeable number, because it can be changed into a prime (964452647) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 276933 + ... + 280393.

It is an arithmetic number, because the mean of its divisors is an integer number (34993896).

Almost surely, 2^964452643 is an apocalyptic number.

964452643 is a deficient number, since it is larger than the sum of its proper divisors (295327613).

964452643 is a wasteful number, since it uses less digits than its factorization.

964452643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544 (or 3526 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The square root of 964452643 is about 31055.6378617474. The cubic root of 964452643 is about 988.0076391827.

The spelling of 964452643 in words is "nine hundred sixty-four million, four hundred fifty-two thousand, six hundred forty-three".