68367679 has 4 divisors (see below), whose sum is σ = 70573120. Its totient is φ = 66162240.

The previous prime is 68367583. The next prime is 68367701. The reversal of 68367679 is 97676386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97676386 = 2 ⋅48838193.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68367679 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 (68367779) 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, 1102674 + ... + 1102735.

It is an arithmetic number, because the mean of its divisors is an integer number (17643280).

Almost surely, 2^68367679 is an apocalyptic number.

68367679 is a deficient number, since it is larger than the sum of its proper divisors (2205441).

68367679 is a wasteful number, since it uses less digits than its factorization.

68367679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205440.

The product of its digits is 2286144, while the sum is 52.

The square root of 68367679 is about 8268.4750105446. The cubic root of 68367679 is about 408.8998445586.

The spelling of 68367679 in words is "sixty-eight million, three hundred sixty-seven thousand, six hundred seventy-nine".