68542704 has 30 divisors (see below), whose sum is σ = 191824776. Its totient is φ = 22847520.

The previous prime is 68542697. The next prime is 68542723. The reversal of 68542704 is 40724586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 237852 + ... + 238139.

Almost surely, 2^68542704 is an apocalyptic number.

It is an amenable number.

68542704 is an abundant number, since it is smaller than the sum of its proper divisors (123282072).

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

68542704 is a wasteful number, since it uses less digits than its factorization.

68542704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476005 (or 475996 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 68542704 is about 8279.0521196572. The cubic root of 68542704 is about 409.2484825439.

The spelling of 68542704 in words is "sixty-eight million, five hundred forty-two thousand, seven hundred four".