68215794 has 16 divisors (see below), whose sum is σ = 136519680. Its totient is φ = 22723920.

The previous prime is 68215793. The next prime is 68215813. The reversal of 68215794 is 49751286.

It is not an unprimeable number, because it can be changed into a prime (68215793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10767 + ... + 15885.

It is an arithmetic number, because the mean of its divisors is an integer number (8532480).

Almost surely, 2^68215794 is an apocalyptic number.

68215794 is an abundant number, since it is smaller than the sum of its proper divisors (68303886).

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

68215794 is a wasteful number, since it uses less digits than its factorization.

68215794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345.

The product of its digits is 120960, while the sum is 42.

The square root of 68215794 is about 8259.2853201715. The cubic root of 68215794 is about 408.5968173493.

The spelling of 68215794 in words is "sixty-eight million, two hundred fifteen thousand, seven hundred ninety-four".