68040623 has 4 divisors (see below), whose sum is σ = 77760720. Its totient is φ = 58320528.

The previous prime is 68040617. The next prime is 68040673. The reversal of 68040623 is 32604086.

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

It is not a de Polignac number, because 68040623 - 2²⁰ = 66992047 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 (68040673) 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, 4860038 + ... + 4860051.

It is an arithmetic number, because the mean of its divisors is an integer number (19440180).

Almost surely, 2^68040623 is an apocalyptic number.

68040623 is a deficient number, since it is larger than the sum of its proper divisors (9720097).

68040623 is an equidigital number, since it uses as much as digits as its factorization.

68040623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720096.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 68040623 is about 8248.6740146523. The cubic root of 68040623 is about 408.2467729703.

The spelling of 68040623 in words is "sixty-eight million, forty thousand, six hundred twenty-three".