401226817 has 2 divisors, whose sum is σ = 401226818. Its totient is φ = 401226816.

The previous prime is 401226797. The next prime is 401226821. The reversal of 401226817 is 718622104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374848321 + 26378496 = 19361^2 + 5136^2 .

It is a cyclic number.

It is not a de Polignac number, because 401226817 - 2²³ = 392838209 is a prime.

It is not a weakly prime, because it can be changed into another prime (401226317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200613408 + 200613409.

It is an arithmetic number, because the mean of its divisors is an integer number (200613409).

Almost surely, 2^401226817 is an apocalyptic number.

It is an amenable number.

401226817 is a deficient number, since it is larger than the sum of its proper divisors (1).

401226817 is an equidigital number, since it uses as much as digits as its factorization.

401226817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 401226817 is about 20030.6469441204. The cubic root of 401226817 is about 737.5588030103.

The spelling of 401226817 in words is "four hundred one million, two hundred twenty-six thousand, eight hundred seventeen".