423877 has 4 divisors (see below), whose sum is σ = 425196. Its totient is φ = 422560.

The previous prime is 423869. The next prime is 423883. The reversal of 423877 is 778324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12996 + 410881 = 114^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 423877 - 2³ = 423869 is a prime.

It is a super-2 number, since 2×423877² = 359343422258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423847) 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, 177 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (106299).

2⁴²³⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

423877 is a deficient number, since it is larger than the sum of its proper divisors (1319).

423877 is an equidigital number, since it uses as much as digits as its factorization.

423877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its digits is 9408, while the sum is 31.

The square root of 423877 is about 651.0583691191. The cubic root of 423877 is about 75.1184498669.

The spelling of 423877 in words is "four hundred twenty-three thousand, eight hundred seventy-seven".