964358641 has 4 divisors (see below), whose sum is σ = 964421284. Its totient is φ = 964296000.

The previous prime is 964358587. The next prime is 964358653. The reversal of 964358641 is 146853469.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146853469 = 7 ⋅20979067.

It can be written as a sum of positive squares in 2 ways, for example, as 676208016 + 288150625 = 26004^2 + 16975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964358641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 964358591 and 964358600.

It is not an unprimeable number, because it can be changed into a prime (964355641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9541 + ... + 44941.

It is an arithmetic number, because the mean of its divisors is an integer number (241105321).

Almost surely, 2^964358641 is an apocalyptic number.

It is an amenable number.

964358641 is a deficient number, since it is larger than the sum of its proper divisors (62643).

964358641 is a wasteful number, since it uses less digits than its factorization.

964358641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62642.

The product of its digits is 622080, while the sum is 46.

The square root of 964358641 is about 31054.1243798630. The cubic root of 964358641 is about 987.9755388640.

The spelling of 964358641 in words is "nine hundred sixty-four million, three hundred fifty-eight thousand, six hundred forty-one".