4023493 has 2 divisors, whose sum is σ = 4023494. Its totient is φ = 4023492.

The previous prime is 4023479. The next prime is 4023511. The reversal of 4023493 is 3943204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 91204 = 1983^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 4023493 - 2⁹ = 4022981 is a prime.

It is equal to p₂₈₄₇₀₄ and since 4023493 and 284704 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4023473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011746 + 2011747.

It is an arithmetic number, because the mean of its divisors is an integer number (2011747).

Almost surely, 2^4023493 is an apocalyptic number.

It is an amenable number.

4023493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023493 is an equidigital number, since it uses as much as digits as its factorization.

4023493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 4023493 is about 2005.8646514658. The cubic root of 4023493 is about 159.0502721985.

Adding to 4023493 its reverse (3943204), we get a palindrome (7966697).

The spelling of 4023493 in words is "four million, twenty-three thousand, four hundred ninety-three".