68757406 has 4 divisors (see below), whose sum is σ = 103136112. Its totient is φ = 34378702.

The previous prime is 68757389. The next prime is 68757427. The reversal of 68757406 is 60475786.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17189350 + ... + 17189353.

It is an arithmetic number, because the mean of its divisors is an integer number (25784028).

Almost surely, 2^68757406 is an apocalyptic number.

68757406 is a deficient number, since it is larger than the sum of its proper divisors (34378706).

68757406 is a wasteful number, since it uses less digits than its factorization.

68757406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34378705.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 68757406 is about 8292.0085624654. The cubic root of 68757406 is about 409.6753448166.

The spelling of 68757406 in words is "sixty-eight million, seven hundred fifty-seven thousand, four hundred six".