993869 has 2 divisors, whose sum is σ = 993870. Its totient is φ = 993868.

The previous prime is 993851. The next prime is 993887. The reversal of 993869 is 968399.

It is a balanced prime because it is at equal distance from previous prime (993851) and next prime (993887).

It can be written as a sum of positive squares in only one way, i.e., 990025 + 3844 = 995^2 + 62^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993869 is a prime.

It is a super-2 number, since 2×993869² = 1975551178322, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 993869.

It is not a weakly prime, because it can be changed into another prime (993169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496934 + 496935.

It is an arithmetic number, because the mean of its divisors is an integer number (496935).

2⁹⁹³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

993869 is a deficient number, since it is larger than the sum of its proper divisors (1).

993869 is an equidigital number, since it uses as much as digits as its factorization.

993869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 44.

The square root of 993869 is about 996.9297868957. The cubic root of 993869 is about 99.7952142476.

The spelling of 993869 in words is "nine hundred ninety-three thousand, eight hundred sixty-nine".