855293 has 2 divisors, whose sum is σ = 855294. Its totient is φ = 855292.

The previous prime is 855277. The next prime is 855307. The reversal of 855293 is 392558.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851929 + 3364 = 923^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 855293 - 2⁴ = 855277 is a prime.

It is a super-2 number, since 2×855293² = 1463052231698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427646 + 427647.

It is an arithmetic number, because the mean of its divisors is an integer number (427647).

2⁸⁵⁵²⁹³ is an apocalyptic number.

It is an amenable number.

855293 is a deficient number, since it is larger than the sum of its proper divisors (1).

855293 is an equidigital number, since it uses as much as digits as its factorization.

855293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 855293 is about 924.8205231287. The cubic root of 855293 is about 94.9230401645.

The spelling of 855293 in words is "eight hundred fifty-five thousand, two hundred ninety-three".