3123623 has 2 divisors, whose sum is σ = 3123624. Its totient is φ = 3123622.

The previous prime is 3123611. The next prime is 3123629. The reversal of 3123623 is 3263213.

It is a strong prime.

It is an emirp because it is prime and its reverse (3263213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3123623 - 2¹⁸ = 2861479 is a prime.

It is a super-2 number, since 2×3123623² = 19514041292258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3123595 and 3123604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561811 + 1561812.

It is an arithmetic number, because the mean of its divisors is an integer number (1561812).

Almost surely, 2^3123623 is an apocalyptic number.

3123623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123623 is an equidigital number, since it uses as much as digits as its factorization.

3123623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 20.

The square root of 3123623 is about 1767.3774356373. The cubic root of 3123623 is about 146.1794097695.

Adding to 3123623 its reverse (3263213), we get a palindrome (6386836).

The spelling of 3123623 in words is "three million, one hundred twenty-three thousand, six hundred twenty-three".