67612679 has 4 divisors (see below), whose sum is σ = 67640784. Its totient is φ = 67584576.

The previous prime is 67612627. The next prime is 67612691. The reversal of 67612679 is 97621676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67612679 - 2²⁰ = 66564103 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 (67612609) 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, 10067 + ... + 15380.

It is an arithmetic number, because the mean of its divisors is an integer number (16910196).

Almost surely, 2^67612679 is an apocalyptic number.

67612679 is a deficient number, since it is larger than the sum of its proper divisors (28105).

67612679 is a wasteful number, since it uses less digits than its factorization.

67612679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28104.

The product of its digits is 190512, while the sum is 44.

The square root of 67612679 is about 8222.6929287187. The cubic root of 67612679 is about 407.3890779180.

The spelling of 67612679 in words is "sixty-seven million, six hundred twelve thousand, six hundred seventy-nine".