67608613 has 4 divisors (see below), whose sum is σ = 69789568. Its totient is φ = 65427660.

The previous prime is 67608587. The next prime is 67608617. The reversal of 67608613 is 31680676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67608613 - 2⁵ = 67608581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67608617) 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, 1090431 + ... + 1090492.

It is an arithmetic number, because the mean of its divisors is an integer number (17447392).

Almost surely, 2^67608613 is an apocalyptic number.

It is an amenable number.

67608613 is a deficient number, since it is larger than the sum of its proper divisors (2180955).

67608613 is a wasteful number, since it uses less digits than its factorization.

67608613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180954.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 67608613 is about 8222.4456823989. The cubic root of 67608613 is about 407.3809114162.

The spelling of 67608613 in words is "sixty-seven million, six hundred eight thousand, six hundred thirteen".