685827283 has 2 divisors, whose sum is σ = 685827284. Its totient is φ = 685827282.

The previous prime is 685827239. The next prime is 685827319. The reversal of 685827283 is 382728586.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 685827283 - 2¹⁷ = 685696211 is a prime.

It is not a weakly prime, because it can be changed into another prime (685827383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342913641 + 342913642.

It is an arithmetic number, because the mean of its divisors is an integer number (342913642).

Almost surely, 2^685827283 is an apocalyptic number.

685827283 is a deficient number, since it is larger than the sum of its proper divisors (1).

685827283 is an equidigital number, since it uses as much as digits as its factorization.

685827283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 685827283 is about 26188.3043170038. The cubic root of 685827283 is about 881.8707117804.

The spelling of 685827283 in words is "six hundred eighty-five million, eight hundred twenty-seven thousand, two hundred eighty-three".