406598417 has 2 divisors, whose sum is σ = 406598418. Its totient is φ = 406598416.

The previous prime is 406598399. The next prime is 406598419. The reversal of 406598417 is 714895604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406465921 + 132496 = 20161^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 406598417 - 2¹⁶ = 406532881 is a prime.

Together with 406598419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406598419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203299208 + 203299209.

It is an arithmetic number, because the mean of its divisors is an integer number (203299209).

Almost surely, 2^406598417 is an apocalyptic number.

It is an amenable number.

406598417 is a deficient number, since it is larger than the sum of its proper divisors (1).

406598417 is an equidigital number, since it uses as much as digits as its factorization.

406598417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 406598417 is about 20164.2856803805. The cubic root of 406598417 is about 740.8356866509.

The spelling of 406598417 in words is "four hundred six million, five hundred ninety-eight thousand, four hundred seventeen".