47858689 has 6 divisors (see below), whose sum is σ = 50839814. Its totient is φ = 45043200.

The previous prime is 47858687. The next prime is 47858711. The reversal of 47858689 is 98685874.

It can be written as a sum of positive squares in 3 ways, for example, as 28569025 + 19289664 = 5345^2 + 4392^2 .

It is not a de Polignac number, because 47858689 - 2¹ = 47858687 is a prime.

It is a super-2 number, since 2×47858689² = 4580908225597442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47858683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82512 + ... + 83089.

Almost surely, 2^47858689 is an apocalyptic number.

It is an amenable number.

47858689 is a deficient number, since it is larger than the sum of its proper divisors (2981125).

47858689 is a wasteful number, since it uses less digits than its factorization.

47858689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165635 (or 165618 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The square root of 47858689 is about 6917.9974703667. The cubic root of 47858689 is about 363.0671303370.

The spelling of 47858689 in words is "forty-seven million, eight hundred fifty-eight thousand, six hundred eighty-nine".