7189189 has 4 divisors (see below), whose sum is σ = 8216224. Its totient is φ = 6162156.

The previous prime is 7189159. The next prime is 7189207. The reversal of 7189189 is 9819817.

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.

It is not a de Polignac number, because 7189189 - 2⁵ = 7189157 is a prime.

It is a Duffinian number.

7189189 is a modest number, since divided by 189189 gives 7 as remainder.

7189189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7189159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513507 + ... + 513520.

It is an arithmetic number, because the mean of its divisors is an integer number (2054056).

Almost surely, 2^7189189 is an apocalyptic number.

It is an amenable number.

7189189 is a deficient number, since it is larger than the sum of its proper divisors (1027035).

7189189 is a wasteful number, since it uses less digits than its factorization.

7189189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027034.

The product of its digits is 36288, while the sum is 43.

The square root of 7189189 is about 2681.2663053117. The cubic root of 7189189 is about 193.0011812325.

The spelling of 7189189 in words is "seven million, one hundred eighty-nine thousand, one hundred eighty-nine".