423554843 has 4 divisors (see below), whose sum is σ = 425118048. Its totient is φ = 421991640.

The previous prime is 423554839. The next prime is 423554917. The reversal of 423554843 is 348455324.

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 423554843 - 2² = 423554839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423554797 and 423554806.

It is not an unprimeable number, because it can be changed into a prime (423553843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781196 + ... + 781737.

It is an arithmetic number, because the mean of its divisors is an integer number (106279512).

Almost surely, 2^423554843 is an apocalyptic number.

423554843 is a deficient number, since it is larger than the sum of its proper divisors (1563205).

423554843 is a wasteful number, since it uses less digits than its factorization.

423554843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563204.

The product of its digits is 230400, while the sum is 38.

The square root of 423554843 is about 20580.4480757830. The cubic root of 423554843 is about 750.9941441728.

The spelling of 423554843 in words is "four hundred twenty-three million, five hundred fifty-four thousand, eight hundred forty-three".