68424673 has 4 divisors (see below), whose sum is σ = 69130180. Its totient is φ = 67719168.

The previous prime is 68424667. The next prime is 68424691. The reversal of 68424673 is 37642486.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10543009 + 57881664 = 3247^2 + 7608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68424673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68424623) 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, 352608 + ... + 352801.

It is an arithmetic number, because the mean of its divisors is an integer number (17282545).

Almost surely, 2^68424673 is an apocalyptic number.

It is an amenable number.

68424673 is a deficient number, since it is larger than the sum of its proper divisors (705507).

68424673 is an equidigital number, since it uses as much as digits as its factorization.

68424673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705506.

The product of its digits is 193536, while the sum is 40.

The square root of 68424673 is about 8271.9207563903. The cubic root of 68424673 is about 409.0134380243.

The spelling of 68424673 in words is "sixty-eight million, four hundred twenty-four thousand, six hundred seventy-three".