869449283 has 2 divisors, whose sum is σ = 869449284. Its totient is φ = 869449282.

The previous prime is 869449249. The next prime is 869449307. The reversal of 869449283 is 382944968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869449283 - 2¹⁸ = 869187139 is a prime.

It is not a weakly prime, because it can be changed into another prime (869449213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434724641 + 434724642.

It is an arithmetic number, because the mean of its divisors is an integer number (434724642).

Almost surely, 2^869449283 is an apocalyptic number.

869449283 is a deficient number, since it is larger than the sum of its proper divisors (1).

869449283 is an equidigital number, since it uses as much as digits as its factorization.

869449283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 53.

The square root of 869449283 is about 29486.4254022084. The cubic root of 869449283 is about 954.4387967609.

The spelling of 869449283 in words is "eight hundred sixty-nine million, four hundred forty-nine thousand, two hundred eighty-three".