3457823 has 4 divisors (see below), whose sum is σ = 3466848. Its totient is φ = 3448800.

The previous prime is 3457819. The next prime is 3457841. The reversal of 3457823 is 3287543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3287543 = 7 ⋅469649.

It is a cyclic number.

It is not a de Polignac number, because 3457823 - 2² = 3457819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3457823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3457123) 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, 3911 + ... + 4712.

It is an arithmetic number, because the mean of its divisors is an integer number (866712).

Almost surely, 2^3457823 is an apocalyptic number.

3457823 is a deficient number, since it is larger than the sum of its proper divisors (9025).

3457823 is an equidigital number, since it uses as much as digits as its factorization.

3457823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024.

The product of its digits is 20160, while the sum is 32.

The square root of 3457823 is about 1859.5222504719. The cubic root of 3457823 is about 151.2171050654.

The spelling of 3457823 in words is "three million, four hundred fifty-seven thousand, eight hundred twenty-three".