68877312 has 88 divisors (see below), whose sum is σ = 209874816. Its totient is φ = 19673088.

The previous prime is 68877287. The next prime is 68877317. The reversal of 68877312 is 21377886.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68877317) 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, 19903 + ... + 23105.

Almost surely, 2^68877312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68877312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104937408).

68877312 is an abundant number, since it is smaller than the sum of its proper divisors (140997504).

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

68877312 is a wasteful number, since it uses less digits than its factorization.

68877312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233 (or 3215 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 68877312 is about 8299.2356274539. The cubic root of 68877312 is about 409.9133507152.

The spelling of 68877312 in words is "sixty-eight million, eight hundred seventy-seven thousand, three hundred twelve".