825999983 has 2 divisors, whose sum is σ = 825999984. Its totient is φ = 825999982.

The previous prime is 825999973. The next prime is 825999997. The reversal of 825999983 is 389999528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825999983 - 2¹⁰ = 825998959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825999913) 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, 412999991 + 412999992.

It is an arithmetic number, because the mean of its divisors is an integer number (412999992).

Almost surely, 2^825999983 is an apocalyptic number.

825999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

825999983 is an equidigital number, since it uses as much as digits as its factorization.

825999983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 62.

The square root of 825999983 is about 28740.2154306470. The cubic root of 825999983 is about 938.2675131810.

The spelling of 825999983 in words is "eight hundred twenty-five million, nine hundred ninety-nine thousand, nine hundred eighty-three".