8401217 has 16 divisors (see below), whose sum is σ = 9621504. Its totient is φ = 7266000.

The previous prime is 8401207. The next prime is 8401219. The reversal of 8401217 is 7121048.

It is a cyclic number.

It is not a de Polignac number, because 8401217 - 2⁴ = 8401201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8401192 and 8401201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24038 + ... + 24384.

It is an arithmetic number, because the mean of its divisors is an integer number (601344).

Almost surely, 2^8401217 is an apocalyptic number.

It is an amenable number.

8401217 is a deficient number, since it is larger than the sum of its proper divisors (1220287).

8401217 is a wasteful number, since it uses less digits than its factorization.

8401217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 8401217 is about 2898.4852940803. The cubic root of 8401217 is about 203.2890879871.

The spelling of 8401217 in words is "eight million, four hundred one thousand, two hundred seventeen".