801857323 has 4 divisors (see below), whose sum is σ = 844060360. Its totient is φ = 759654288.

The previous prime is 801857269. The next prime is 801857327. The reversal of 801857323 is 323758108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801857323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801857327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21101490 + ... + 21101527.

It is an arithmetic number, because the mean of its divisors is an integer number (211015090).

Almost surely, 2^801857323 is an apocalyptic number.

801857323 is a deficient number, since it is larger than the sum of its proper divisors (42203037).

801857323 is a wasteful number, since it uses less digits than its factorization.

801857323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42203036.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 801857323 is about 28317.0853549584. The cubic root of 801857323 is about 929.0356222796.

It can be divided in two parts, 8018 and 57323, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 801857323 in words is "eight hundred one million, eight hundred fifty-seven thousand, three hundred twenty-three".