68723811 has 24 divisors (see below), whose sum is σ = 108422496. Its totient is φ = 41690880.

The previous prime is 68723791. The next prime is 68723813. The reversal of 68723811 is 11832786.

It is not a de Polignac number, because 68723811 - 2¹⁴ = 68707427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68723813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (4517604).

Almost surely, 2^68723811 is an apocalyptic number.

68723811 is a deficient number, since it is larger than the sum of its proper divisors (39698685).

68723811 is a wasteful number, since it uses less digits than its factorization.

68723811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8363 (or 8360 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 68723811 is about 8289.9825693424. The cubic root of 68723811 is about 409.6086112278.

The spelling of 68723811 in words is "sixty-eight million, seven hundred twenty-three thousand, eight hundred eleven".