68581723 has 36 divisors (see below), whose sum is σ = 88194960. Its totient is φ = 53098752.

The previous prime is 68581691. The next prime is 68581729. The reversal of 68581723 is 32718586.

It is not a de Polignac number, because 68581723 - 2⁵ = 68581691 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68581729) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 410586 + ... + 410752.

It is an arithmetic number, because the mean of its divisors is an integer number (2449860).

Almost surely, 2^68581723 is an apocalyptic number.

68581723 is a deficient number, since it is larger than the sum of its proper divisors (19613237).

68581723 is a wasteful number, since it uses less digits than its factorization.

68581723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 220 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 68581723 is about 8281.4082739592. The cubic root of 68581723 is about 409.3261248334.

The spelling of 68581723 in words is "sixty-eight million, five hundred eighty-one thousand, seven hundred twenty-three".