855723901 has 8 divisors (see below), whose sum is σ = 917063424. Its totient is φ = 796395600.

The previous prime is 855723899. The next prime is 855723929. The reversal of 855723901 is 109327558.

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 855723901 - 2¹ = 855723899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855723931) 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, 501925 + ... + 503626.

It is an arithmetic number, because the mean of its divisors is an integer number (114632928).

Almost surely, 2^855723901 is an apocalyptic number.

It is an amenable number.

855723901 is a deficient number, since it is larger than the sum of its proper divisors (61339523).

855723901 is a wasteful number, since it uses less digits than its factorization.

855723901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005611.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 855723901 is about 29252.7588613450. The cubic root of 855723901 is about 949.3897839301.

The spelling of 855723901 in words is "eight hundred fifty-five million, seven hundred twenty-three thousand, nine hundred one".