68485733 has 4 divisors (see below), whose sum is σ = 70847340. Its totient is φ = 66124128.

The previous prime is 68485723. The next prime is 68485751. The reversal of 68485733 is 33758486.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 57047809 = 3382^2 + 7553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68485733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68485723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180760 + ... + 1180817.

It is an arithmetic number, because the mean of its divisors is an integer number (17711835).

Almost surely, 2^68485733 is an apocalyptic number.

68485733 is the 4424-th centered heptagonal number.

It is an amenable number.

68485733 is a deficient number, since it is larger than the sum of its proper divisors (2361607).

68485733 is a wasteful number, since it uses less digits than its factorization.

68485733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361606.

The product of its digits is 483840, while the sum is 44.

The square root of 68485733 is about 8275.6107327496. The cubic root of 68485733 is about 409.1350653766.

The spelling of 68485733 in words is "sixty-eight million, four hundred eighty-five thousand, seven hundred thirty-three".