68143704 has 32 divisors (see below), whose sum is σ = 175856640. Its totient is φ = 21981600.

The previous prime is 68143703. The next prime is 68143717. The reversal of 68143704 is 40734186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68143703) 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, 45052 + ... + 46539.

It is an arithmetic number, because the mean of its divisors is an integer number (5495520).

Almost surely, 2^68143704 is an apocalyptic number.

It is an amenable number.

68143704 is an abundant number, since it is smaller than the sum of its proper divisors (107712936).

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

68143704 is a wasteful number, since it uses less digits than its factorization.

68143704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91631 (or 91627 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68143704 is about 8254.9199874984. The cubic root of 68143704 is about 408.4528324784.

The spelling of 68143704 in words is "sixty-eight million, one hundred forty-three thousand, seven hundred four".