4251623 has 2 divisors, whose sum is σ = 4251624. Its totient is φ = 4251622.

The previous prime is 4251617. The next prime is 4251629. The reversal of 4251623 is 3261524.

It is a balanced prime because it is at equal distance from previous prime (4251617) and next prime (4251629).

It is a cyclic number.

It is not a de Polignac number, because 4251623 - 2¹⁰ = 4250599 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2²¹ + 5 + 1 + 6⁶ + 2²¹ + 3⁸ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4251629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125811 + 2125812.

It is an arithmetic number, because the mean of its divisors is an integer number (2125812).

Almost surely, 2^4251623 is an apocalyptic number.

4251623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251623 is an equidigital number, since it uses as much as digits as its factorization.

4251623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 4251623 is about 2061.9464105548. The cubic root of 4251623 is about 162.0012066160.

Subtracting from 4251623 its reverse (3261524), we obtain a palindrome (990099).

It can be divided in two parts, 425 and 1623, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 4251623 in words is "four million, two hundred fifty-one thousand, six hundred twenty-three".