4247623 has 2 divisors, whose sum is σ = 4247624. Its totient is φ = 4247622.

The previous prime is 4247611. The next prime is 4247629. The reversal of 4247623 is 3267424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4247623 - 2²¹ = 2150471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4247591 and 4247600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123811 + 2123812.

It is an arithmetic number, because the mean of its divisors is an integer number (2123812).

Almost surely, 2^4247623 is an apocalyptic number.

4247623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247623 is an equidigital number, since it uses as much as digits as its factorization.

4247623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 4247623 is about 2060.9762249963. The cubic root of 4247623 is about 161.9503861685.

The spelling of 4247623 in words is "four million, two hundred forty-seven thousand, six hundred twenty-three".