68311283 has 4 divisors (see below), whose sum is σ = 69247128. Its totient is φ = 67375440.

The previous prime is 68311279. The next prime is 68311307. The reversal of 68311283 is 38211386.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68311283 - 2² = 68311279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68311273) 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, 467813 + ... + 467958.

It is an arithmetic number, because the mean of its divisors is an integer number (17311782).

Almost surely, 2^68311283 is an apocalyptic number.

68311283 is a deficient number, since it is larger than the sum of its proper divisors (935845).

68311283 is an equidigital number, since it uses as much as digits as its factorization.

68311283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935844.

The product of its digits is 6912, while the sum is 32.

The square root of 68311283 is about 8265.0640045919. The cubic root of 68311283 is about 408.7873807958.

The spelling of 68311283 in words is "sixty-eight million, three hundred eleven thousand, two hundred eighty-three".