964989481 has 2 divisors, whose sum is σ = 964989482. Its totient is φ = 964989480.

The previous prime is 964989469. The next prime is 964989521. The reversal of 964989481 is 184989469.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 505530256 + 459459225 = 22484^2 + 21435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-964989481 is a prime.

It is a super-2 number, since 2×964989481² = 1862409396881298722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (964986481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482494740 + 482494741.

It is an arithmetic number, because the mean of its divisors is an integer number (482494741).

Almost surely, 2^964989481 is an apocalyptic number.

It is an amenable number.

964989481 is a deficient number, since it is larger than the sum of its proper divisors (1).

964989481 is an equidigital number, since it uses as much as digits as its factorization.

964989481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 58.

The square root of 964989481 is about 31064.2798242612. The cubic root of 964989481 is about 988.1909216100.

The spelling of 964989481 in words is "nine hundred sixty-four million, nine hundred eighty-nine thousand, four hundred eighty-one".