855417323 has 4 divisors (see below), whose sum is σ = 856689048. Its totient is φ = 854145600.

The previous prime is 855417307. The next prime is 855417331. The reversal of 855417323 is 323714558.

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

It is a cyclic number.

It is not a de Polignac number, because 855417323 - 2⁴ = 855417307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855417383) 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, 634853 + ... + 636198.

It is an arithmetic number, because the mean of its divisors is an integer number (214172262).

Almost surely, 2^855417323 is an apocalyptic number.

855417323 is a deficient number, since it is larger than the sum of its proper divisors (1271725).

855417323 is a wasteful number, since it uses less digits than its factorization.

855417323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271724.

The product of its digits is 100800, while the sum is 38.

The square root of 855417323 is about 29247.5182365957. The cubic root of 855417323 is about 949.2763919092.

The spelling of 855417323 in words is "eight hundred fifty-five million, four hundred seventeen thousand, three hundred twenty-three".