68211984 has 20 divisors (see below), whose sum is σ = 176214416. Its totient is φ = 22737312.

The previous prime is 68211967. The next prime is 68212009. The reversal of 68211984 is 48911286.

It is a super-2 number, since 2×68211984² = 9305749522432512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710494 + ... + 710589.

Almost surely, 2^68211984 is an apocalyptic number.

It is an amenable number.

68211984 is an abundant number, since it is smaller than the sum of its proper divisors (108002432).

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

68211984 is a wasteful number, since it uses less digits than its factorization.

68211984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421094 (or 1421088 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 68211984 is about 8259.0546674544. The cubic root of 68211984 is about 408.5892102016.

The spelling of 68211984 in words is "sixty-eight million, two hundred eleven thousand, nine hundred eighty-four".