8217401 has 4 divisors (see below), whose sum is σ = 8292900. Its totient is φ = 8141904.

The previous prime is 8217383. The next prime is 8217427. The reversal of 8217401 is 1047128.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 4515625 = 1924^2 + 2125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8217401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8217301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37586 + ... + 37803.

It is an arithmetic number, because the mean of its divisors is an integer number (2073225).

Almost surely, 2^8217401 is an apocalyptic number.

It is an amenable number.

8217401 is a deficient number, since it is larger than the sum of its proper divisors (75499).

8217401 is a wasteful number, since it uses less digits than its factorization.

8217401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75498.

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

The square root of 8217401 is about 2866.6009488591. The cubic root of 8217401 is about 201.7955075266.

The spelling of 8217401 in words is "eight million, two hundred seventeen thousand, four hundred one".