68573739 has 8 divisors (see below), whose sum is σ = 98464912. Its totient is φ = 42199200.

The previous prime is 68573737. The next prime is 68573759. The reversal of 68573739 is 93737586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68573739 - 2¹ = 68573737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68573731) 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, 879112 + ... + 879189.

It is an arithmetic number, because the mean of its divisors is an integer number (12308114).

Almost surely, 2^68573739 is an apocalyptic number.

68573739 is a deficient number, since it is larger than the sum of its proper divisors (29891173).

68573739 is a wasteful number, since it uses less digits than its factorization.

68573739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758317.

The product of its digits is 952560, while the sum is 48.

The square root of 68573739 is about 8280.9262163118. The cubic root of 68573739 is about 409.3102401999.

The spelling of 68573739 in words is "sixty-eight million, five hundred seventy-three thousand, seven hundred thirty-nine".