890993 has 2 divisors, whose sum is σ = 890994. Its totient is φ = 890992.

The previous prime is 890969. The next prime is 890999. The reversal of 890993 is 399098.

890993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 262144 = 793^2 + 512^2 .

It is a cyclic number.

It is not a de Polignac number, because 890993 - 2⁸ = 890737 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (890999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445496 + 445497.

It is an arithmetic number, because the mean of its divisors is an integer number (445497).

2⁸⁹⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

890993 is a deficient number, since it is larger than the sum of its proper divisors (1).

890993 is an equidigital number, since it uses as much as digits as its factorization.

890993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 890993 is about 943.9242554358. The cubic root of 890993 is about 96.2257779044.

The spelling of 890993 in words is "eight hundred ninety thousand, nine hundred ninety-three".