823270403 has 4 divisors (see below), whose sum is σ = 824531808. Its totient is φ = 822009000.

The previous prime is 823270397. The next prime is 823270411. The reversal of 823270403 is 304072328.

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 823270403 - 2²⁸ = 554834947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823270103) 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, 629723 + ... + 631028.

It is an arithmetic number, because the mean of its divisors is an integer number (206132952).

Almost surely, 2^823270403 is an apocalyptic number.

823270403 is a deficient number, since it is larger than the sum of its proper divisors (1261405).

823270403 is a wasteful number, since it uses less digits than its factorization.

823270403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261404.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 823270403 is about 28692.6890165422. The cubic root of 823270403 is about 937.2328470904.

The spelling of 823270403 in words is "eight hundred twenty-three million, two hundred seventy thousand, four hundred three".