782423 has 4 divisors (see below), whose sum is σ = 784320. Its totient is φ = 780528.

The previous prime is 782393. The next prime is 782429. The reversal of 782423 is 324287.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324287 = 139 ⋅2333.

It is a cyclic number.

It is not a de Polignac number, because 782423 - 2¹⁰ = 781399 is a prime.

It is a super-2 number, since 2×782423² = 1224371501858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 782392 and 782401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782429) 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, 38 + ... + 1251.

It is an arithmetic number, because the mean of its divisors is an integer number (196080).

2⁷⁸²⁴²³ is an apocalyptic number.

782423 is a deficient number, since it is larger than the sum of its proper divisors (1897).

782423 is a wasteful number, since it uses less digits than its factorization.

782423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its digits is 2688, while the sum is 26.

The square root of 782423 is about 884.5467766037. The cubic root of 782423 is about 92.1468590179.

The spelling of 782423 in words is "seven hundred eighty-two thousand, four hundred twenty-three".