4157623 has 2 divisors, whose sum is σ = 4157624. Its totient is φ = 4157622.

The previous prime is 4157617. The next prime is 4157663. The reversal of 4157623 is 3267514.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4157623 - 2⁵ = 4157591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4157591 and 4157600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4157603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078811 + 2078812.

It is an arithmetic number, because the mean of its divisors is an integer number (2078812).

Almost surely, 2^4157623 is an apocalyptic number.

4157623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4157623 is an equidigital number, since it uses as much as digits as its factorization.

4157623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 4157623 is about 2039.0250121075. The cubic root of 4157623 is about 160.7983922473.

The spelling of 4157623 in words is "four million, one hundred fifty-seven thousand, six hundred twenty-three".