968649964 has 12 divisors (see below), whose sum is σ = 1723869000. Its totient is φ = 476115968.

The previous prime is 968649961. The next prime is 968650057. The reversal of 968649964 is 469946869.

It is a super-3 number, since 3×968649964³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (968649961) 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, 2051989 + ... + 2052460.

It is an arithmetic number, because the mean of its divisors is an integer number (143655750).

Almost surely, 2^968649964 is an apocalyptic number.

It is an amenable number.

968649964 is a deficient number, since it is larger than the sum of its proper divisors (755219036).

968649964 is a wasteful number, since it uses less digits than its factorization.

968649964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104512 (or 4104510 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 61.

The square root of 968649964 is about 31123.1419365076. The cubic root of 968649964 is about 989.4388426116.

The spelling of 968649964 in words is "nine hundred sixty-eight million, six hundred forty-nine thousand, nine hundred sixty-four".