869983 has 2 divisors, whose sum is σ = 869984. Its totient is φ = 869982.

The previous prime is 869959. The next prime is 869989. The reversal of 869983 is 389968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869983 - 2⁵ = 869951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434991 + 434992.

It is an arithmetic number, because the mean of its divisors is an integer number (434992).

2⁸⁶⁹⁹⁸³ is an apocalyptic number.

869983 is a deficient number, since it is larger than the sum of its proper divisors (1).

869983 is an equidigital number, since it uses as much as digits as its factorization.

869983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 869983 is about 932.7287923078. The cubic root of 869983 is about 95.4634052932.

The spelling of 869983 in words is "eight hundred sixty-nine thousand, nine hundred eighty-three".