423617 has 2 divisors, whose sum is σ = 423618. Its totient is φ = 423616.

The previous prime is 423601. The next prime is 423649. The reversal of 423617 is 716324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323761 + 99856 = 569^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 423617 - 2⁴ = 423601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423592 and 423601.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423617.

It is not a weakly prime, because it can be changed into another prime (423667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211808 + 211809.

It is an arithmetic number, because the mean of its divisors is an integer number (211809).

2⁴²³⁶¹⁷ is an apocalyptic number.

It is an amenable number.

423617 is a deficient number, since it is larger than the sum of its proper divisors (1).

423617 is an equidigital number, since it uses as much as digits as its factorization.

423617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 423617 is about 650.8586636129. The cubic root of 423617 is about 75.1030878699.

The spelling of 423617 in words is "four hundred twenty-three thousand, six hundred seventeen".