403223873 has 4 divisors (see below), whose sum is σ = 434241108. Its totient is φ = 372206640.

The previous prime is 403223827. The next prime is 403223893. The reversal of 403223873 is 378322304.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26553409 + 376670464 = 5153^2 + 19408^2 .

It is not a de Polignac number, because 403223873 - 2¹⁰ = 403222849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403223893) 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, 15508598 + ... + 15508623.

It is an arithmetic number, because the mean of its divisors is an integer number (108560277).

Almost surely, 2^403223873 is an apocalyptic number.

It is an amenable number.

403223873 is a deficient number, since it is larger than the sum of its proper divisors (31017235).

403223873 is a wasteful number, since it uses less digits than its factorization.

403223873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31017234.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 403223873 is about 20080.4350799478. The cubic root of 403223873 is about 738.7804803794.

The spelling of 403223873 in words is "four hundred three million, two hundred twenty-three thousand, eight hundred seventy-three".