421097 has 8 divisors (see below), whose sum is σ = 456000. Its totient is φ = 387504.

The previous prime is 421093. The next prime is 421103. The reversal of 421097 is 790124.

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 421097 - 2² = 421093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 1002.

It is an arithmetic number, because the mean of its divisors is an integer number (57000).

2⁴²¹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

421097 is a deficient number, since it is larger than the sum of its proper divisors (34903).

421097 is a wasteful number, since it uses less digits than its factorization.

421097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 421097 is about 648.9198717870. The cubic root of 421097 is about 74.9538679265.

The spelling of 421097 in words is "four hundred twenty-one thousand, ninety-seven".