855738293 has 8 divisors (see below), whose sum is σ = 895195800. Its totient is φ = 816944128.

The previous prime is 855738241. The next prime is 855738337. The reversal of 855738293 is 392837558.

It can be written as a sum of positive squares in 4 ways, for example, as 39664804 + 816073489 = 6298^2 + 28567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 855738293 - 2²² = 851543989 is a prime.

It is a super-2 number, since 2×855738293² = 1464576052213107698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855738203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163196 + ... + 168357.

It is an arithmetic number, because the mean of its divisors is an integer number (111899475).

Almost surely, 2^855738293 is an apocalyptic number.

It is an amenable number.

855738293 is a deficient number, since it is larger than the sum of its proper divisors (39457507).

855738293 is a wasteful number, since it uses less digits than its factorization.

855738293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331671.

The product of its digits is 1814400, while the sum is 50.

The square root of 855738293 is about 29253.0048542026. The cubic root of 855738293 is about 949.3951063404.

The spelling of 855738293 in words is "eight hundred fifty-five million, seven hundred thirty-eight thousand, two hundred ninety-three".