68578653 has 16 divisors (see below), whose sum is σ = 107424576. Its totient is φ = 38365440.

The previous prime is 68578633. The next prime is 68578669. The reversal of 68578653 is 35687586.

It is not a de Polignac number, because 68578653 - 2⁶ = 68578589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68578633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79500 + ... + 80357.

It is an arithmetic number, because the mean of its divisors is an integer number (6714036).

Almost surely, 2^68578653 is an apocalyptic number.

It is an amenable number.

68578653 is a deficient number, since it is larger than the sum of its proper divisors (38845923).

68578653 is a wasteful number, since it uses less digits than its factorization.

68578653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159884.

The product of its digits is 1209600, while the sum is 48.

The square root of 68578653 is about 8281.2229169368. Note that the first 3 decimals coincide. The cubic root of 68578653 is about 409.3200170353.

The spelling of 68578653 in words is "sixty-eight million, five hundred seventy-eight thousand, six hundred fifty-three".