3427823 has 4 divisors (see below), whose sum is σ = 3917520. Its totient is φ = 2938128.

The previous prime is 3427819. The next prime is 3427843. The reversal of 3427823 is 3287243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3287243 = 223 ⋅14741.

It is a cyclic number.

It is not a de Polignac number, because 3427823 - 2² = 3427819 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427813) 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, 244838 + ... + 244851.

It is an arithmetic number, because the mean of its divisors is an integer number (979380).

Almost surely, 2^3427823 is an apocalyptic number.

3427823 is a deficient number, since it is larger than the sum of its proper divisors (489697).

3427823 is an equidigital number, since it uses as much as digits as its factorization.

3427823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489696.

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

The square root of 3427823 is about 1851.4380897022. The cubic root of 3427823 is about 150.7785153978.

The spelling of 3427823 in words is "three million, four hundred twenty-seven thousand, eight hundred twenty-three".