68409337 has 8 divisors (see below), whose sum is σ = 73313856. Its totient is φ = 63665712.

The previous prime is 68409331. The next prime is 68409349. The reversal of 68409337 is 73390486.

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

It is a cyclic number.

It is not a de Polignac number, because 68409337 - 2¹⁵ = 68376569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68409337.

It is not an unprimeable number, because it can be changed into a prime (68409331) 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, 39343 + ... + 41044.

It is an arithmetic number, because the mean of its divisors is an integer number (9164232).

Almost surely, 2^68409337 is an apocalyptic number.

It is an amenable number.

68409337 is a deficient number, since it is larger than the sum of its proper divisors (4904519).

68409337 is a wasteful number, since it uses less digits than its factorization.

68409337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80447.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 68409337 is about 8270.9937129706. The cubic root of 68409337 is about 408.9828783909.

The spelling of 68409337 in words is "sixty-eight million, four hundred nine thousand, three hundred thirty-seven".