68923733 has 4 divisors (see below), whose sum is σ = 69224940. Its totient is φ = 68622528.

The previous prime is 68923727. The next prime is 68923759. The reversal of 68923733 is 33732986.

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 64288324 + 4635409 = 8018^2 + 2153^2 .

It is a cyclic number.

It is not a de Polignac number, because 68923733 - 2⁶ = 68923669 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 (68923133) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 150260 + ... + 150717.

It is an arithmetic number, because the mean of its divisors is an integer number (17306235).

Almost surely, 2^68923733 is an apocalyptic number.

It is an amenable number.

68923733 is a deficient number, since it is larger than the sum of its proper divisors (301207).

68923733 is a wasteful number, since it uses less digits than its factorization.

68923733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301206.

The product of its digits is 163296, while the sum is 41.

The square root of 68923733 is about 8302.0318597317. The cubic root of 68923733 is about 410.0054193216.

The spelling of 68923733 in words is "sixty-eight million, nine hundred twenty-three thousand, seven hundred thirty-three".