68723418 has 32 divisors (see below), whose sum is σ = 153195840. Its totient is φ = 20424960.

The previous prime is 68723411. The next prime is 68723429. The reversal of 68723418 is 81432786.

It is not an unprimeable number, because it can be changed into a prime (68723411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15793 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (4787370).

Almost surely, 2^68723418 is an apocalyptic number.

68723418 is an abundant number, since it is smaller than the sum of its proper divisors (84472422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68723418 is a wasteful number, since it uses less digits than its factorization.

68723418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35502.

The product of its digits is 64512, while the sum is 39.

The square root of 68723418 is about 8289.9588660017. The cubic root of 68723418 is about 409.6078304383.

The spelling of 68723418 in words is "sixty-eight million, seven hundred twenty-three thousand, four hundred eighteen".