6874189897 has 4 divisors (see below), whose sum is σ = 6876139140. Its totient is φ = 6872240656.

The previous prime is 6874189879. The next prime is 6874189901. The reversal of 6874189897 is 7989814786.

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 5025533881 + 1848656016 = 70891^2 + 42996^2 .

It is a cyclic number.

It is not a de Polignac number, because 6874189897 - 2¹¹ = 6874187849 is a prime.

It is a super-3 number, since 3×6874189897³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6874189807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969322 + ... + 976387.

It is an arithmetic number, because the mean of its divisors is an integer number (1719034785).

Almost surely, 2^6874189897 is an apocalyptic number.

It is an amenable number.

6874189897 is a deficient number, since it is larger than the sum of its proper divisors (1949243).

6874189897 is a wasteful number, since it uses less digits than its factorization.

6874189897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949242.

The product of its digits is 48771072, while the sum is 67.

The square root of 6874189897 is about 82910.7345100741. The cubic root of 6874189897 is about 1901.4015417938.

The spelling of 6874189897 in words is "six billion, eight hundred seventy-four million, one hundred eighty-nine thousand, eight hundred ninety-seven".