8421097 has 8 divisors (see below), whose sum is σ = 8648640. Its totient is φ = 8196720.

The previous prime is 8421079. The next prime is 8421143. The reversal of 8421097 is 7901248.

8421097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8421097 - 2⁷ = 8420969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8421067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5179 + ... + 6607.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^8421097 is an apocalyptic number.

It is an amenable number.

8421097 is a deficient number, since it is larger than the sum of its proper divisors (227543).

8421097 is a wasteful number, since it uses less digits than its factorization.

8421097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 8421097 is about 2901.9126451360. The cubic root of 8421097 is about 203.4493109448.

The spelling of 8421097 in words is "eight million, four hundred twenty-one thousand, ninety-seven".