68964968 has 8 divisors (see below), whose sum is σ = 129309330. Its totient is φ = 34482480.

The previous prime is 68964947. The next prime is 68964979. The reversal of 68964968 is 86946986.

It can be written as a sum of positive squares in only one way, i.e., 38912644 + 30052324 = 6238^2 + 5482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×68964968² = 9512333622482048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4310303 + ... + 4310318.

Almost surely, 2^68964968 is an apocalyptic number.

It is an amenable number.

68964968 is a deficient number, since it is larger than the sum of its proper divisors (60344362).

68964968 is a wasteful number, since it uses less digits than its factorization.

68964968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8620627 (or 8620623 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 56.

The square root of 68964968 is about 8304.5149165981. The cubic root of 68964968 is about 410.0871676652.

The spelling of 68964968 in words is "sixty-eight million, nine hundred sixty-four thousand, nine hundred sixty-eight".