964943986 has 8 divisors (see below), whose sum is σ = 1447672320. Its totient is φ = 482386548.

The previous prime is 964943971. The next prime is 964943989. The reversal of 964943986 is 689349469.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×964943986² = 1862233792235136392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 964943986.

It is not an unprimeable number, because it can be changed into a prime (964943989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27526 + ... + 51841.

It is an arithmetic number, because the mean of its divisors is an integer number (180959040).

Almost surely, 2^964943986 is an apocalyptic number.

964943986 is a deficient number, since it is larger than the sum of its proper divisors (482728334).

964943986 is a wasteful number, since it uses less digits than its factorization.

964943986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85448.

The product of its digits is 10077696, while the sum is 58.

The square root of 964943986 is about 31063.5475437047. The cubic root of 964943986 is about 988.1753917507.

It can be divided in two parts, 9649 and 43986, that added together give a palindrome (53635).

The spelling of 964943986 in words is "nine hundred sixty-four million, nine hundred forty-three thousand, nine hundred eighty-six".