67996736 has 28 divisors (see below), whose sum is σ = 142870428. Its totient is φ = 31997952.

The previous prime is 67996727. The next prime is 67996739. The reversal of 67996736 is 63769976.

It can be written as a sum of positive squares in 2 ways, for example, as 39438400 + 28558336 = 6280^2 + 5344^2 .

It is a super-2 number, since 2×67996736² = 9247112213307392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67996739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30161 + ... + 32336.

Almost surely, 2^67996736 is an apocalyptic number.

It is an amenable number.

67996736 is an abundant number, since it is smaller than the sum of its proper divisors (74873692).

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

67996736 is a wasteful number, since it uses less digits than its factorization.

67996736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62526 (or 62516 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 53.

The square root of 67996736 is about 8246.0133397903. The cubic root of 67996736 is about 408.1589794391.

The spelling of 67996736 in words is "sixty-seven million, nine hundred ninety-six thousand, seven hundred thirty-six".