67996641 has 8 divisors (see below), whose sum is σ = 90748800. Its totient is φ = 45287792.

The previous prime is 67996637. The next prime is 67996679. The reversal of 67996641 is 14669976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67996641 - 2² = 67996637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67996241) 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, 6966 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (11343600).

Almost surely, 2^67996641 is an apocalyptic number.

It is an amenable number.

67996641 is a deficient number, since it is larger than the sum of its proper divisors (22752159).

67996641 is a wasteful number, since it uses less digits than its factorization.

67996641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21655.

The product of its digits is 489888, while the sum is 48.

The square root of 67996641 is about 8246.0075794290. The cubic root of 67996641 is about 408.1587893558.

The spelling of 67996641 in words is "sixty-seven million, nine hundred ninety-six thousand, six hundred forty-one".