321234397 has 16 divisors (see below), whose sum is σ = 371639232. Its totient is φ = 274417920.

The previous prime is 321234391. The next prime is 321234413. The reversal of 321234397 is 793432123.

It is a cyclic number.

It is not a de Polignac number, because 321234397 - 2⁷ = 321234269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321234391) 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, 185578 + ... + 187300.

It is an arithmetic number, because the mean of its divisors is an integer number (23227452).

Almost surely, 2^321234397 is an apocalyptic number.

It is an amenable number.

321234397 is a deficient number, since it is larger than the sum of its proper divisors (50404835).

321234397 is a wasteful number, since it uses less digits than its factorization.

321234397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748.

The product of its digits is 27216, while the sum is 34.

The square root of 321234397 is about 17923.0130558453. The cubic root of 321234397 is about 684.8687456972.

The spelling of 321234397 in words is "three hundred twenty-one million, two hundred thirty-four thousand, three hundred ninety-seven".