783423 has 12 divisors (see below), whose sum is σ = 1150968. Its totient is φ = 513360.

The previous prime is 783421. The next prime is 783473. The reversal of 783423 is 324387.

It is not a de Polignac number, because 783423 - 2¹ = 783421 is a prime.

It is a super-2 number, since 2×783423² = 1227503193858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (95914).

2⁷⁸³⁴²³ is an apocalyptic number.

783423 is a deficient number, since it is larger than the sum of its proper divisors (367545).

783423 is a wasteful number, since it uses less digits than its factorization.

783423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1491 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 783423 is about 885.1118573378. Note that the first 3 decimals coincide. The cubic root of 783423 is about 92.1860993563.

The spelling of 783423 in words is "seven hundred eighty-three thousand, four hundred twenty-three".