3215623 has 2 divisors, whose sum is σ = 3215624. Its totient is φ = 3215622.

The previous prime is 3215603. The next prime is 3215629. The reversal of 3215623 is 3265123.

It is a strong prime.

It is an emirp because it is prime and its reverse (3265123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3215623 - 2⁵ = 3215591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3215594 and 3215603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3215629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607811 + 1607812.

It is an arithmetic number, because the mean of its divisors is an integer number (1607812).

Almost surely, 2^3215623 is an apocalyptic number.

3215623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215623 is an equidigital number, since it uses as much as digits as its factorization.

3215623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 3215623 is about 1793.2158263857. The cubic root of 3215623 is about 147.6006858271.

The spelling of 3215623 in words is "three million, two hundred fifteen thousand, six hundred twenty-three".