67987712 has 72 divisors (see below), whose sum is σ = 151092480. Its totient is φ = 30320640.

The previous prime is 67987697. The next prime is 67987727. The reversal of 67987712 is 21778976.

It is an interprime number because it is at equal distance from previous prime (67987697) and next prime (67987727).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102839 + ... + 103497.

Almost surely, 2^67987712 is an apocalyptic number.

67987712 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67987712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75546240).

67987712 is an abundant number, since it is smaller than the sum of its proper divisors (83104768).

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

67987712 is a wasteful number, since it uses less digits than its factorization.

67987712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 705 counting only the distinct ones).

The product of its digits is 296352, while the sum is 47.

The square root of 67987712 is about 8245.4661481326. The cubic root of 67987712 is about 408.1409227411.

The spelling of 67987712 in words is "sixty-seven million, nine hundred eighty-seven thousand, seven hundred twelve".