67888964 has 24 divisors (see below), whose sum is σ = 139577088. Its totient is φ = 28484640.

The previous prime is 67888963. The next prime is 67888967. The reversal of 67888964 is 46988876.

It is a super-2 number, since 2×67888964² = 9217822865986592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67888963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58772 + ... + 59915.

It is an arithmetic number, because the mean of its divisors is an integer number (5815712).

Almost surely, 2^67888964 is an apocalyptic number.

It is an amenable number.

67888964 is an abundant number, since it is smaller than the sum of its proper divisors (71688124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67888964 is a wasteful number, since it uses less digits than its factorization.

67888964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118715 (or 118713 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 67888964 is about 8239.4759542097. The cubic root of 67888964 is about 407.9432270742.

The spelling of 67888964 in words is "sixty-seven million, eight hundred eighty-eight thousand, nine hundred sixty-four".