47669189 has 4 divisors (see below), whose sum is σ = 47734956. Its totient is φ = 47603424.

The previous prime is 47669161. The next prime is 47669191. The reversal of 47669189 is 98196674.

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 45792289 + 1876900 = 6767^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 47669189 - 2¹⁶ = 47603653 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 (47669159) 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, 31784 + ... + 33249.

It is an arithmetic number, because the mean of its divisors is an integer number (11933739).

Almost surely, 2^47669189 is an apocalyptic number.

It is an amenable number.

47669189 is a deficient number, since it is larger than the sum of its proper divisors (65767).

47669189 is an equidigital number, since it uses as much as digits as its factorization.

47669189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65766.

The product of its digits is 653184, while the sum is 50.

The square root of 47669189 is about 6904.2877257542. The cubic root of 47669189 is about 362.5872994658.

The spelling of 47669189 in words is "forty-seven million, six hundred sixty-nine thousand, one hundred eighty-nine".