6874009321 has 4 divisors (see below), whose sum is σ = 6874778512. Its totient is φ = 6873240132.

The previous prime is 6874009277. The next prime is 6874009327. The reversal of 6874009321 is 1239004786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1239004786 = 2 ⋅619502393.

It is a cyclic number.

It is not a de Polignac number, because 6874009321 - 2⁷ = 6874009193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6874009327) 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, 371031 + ... + 389116.

It is an arithmetic number, because the mean of its divisors is an integer number (1718694628).

Almost surely, 2^6874009321 is an apocalyptic number.

It is an amenable number.

6874009321 is a deficient number, since it is larger than the sum of its proper divisors (769191).

6874009321 is an equidigital number, since it uses as much as digits as its factorization.

6874009321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769190.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6874009321 is about 82909.6455245106. The cubic root of 6874009321 is about 1901.3848925354.

The spelling of 6874009321 in words is "six billion, eight hundred seventy-four million, nine thousand, three hundred twenty-one".