47102689 has 6 divisors (see below), whose sum is σ = 49240226. Its totient is φ = 45054240.

The previous prime is 47102687. The next prime is 47102747. The reversal of 47102689 is 98620174.

It can be written as a sum of positive squares in only one way, i.e., 26780625 + 20322064 = 5175^2 + 4508^2 .

It is not a de Polignac number, because 47102689 - 2¹ = 47102687 is a prime.

It is a super-2 number, since 2×47102689² = 4437326622061442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47102683) 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, 43992 + ... + 45049.

Almost surely, 2^47102689 is an apocalyptic number.

It is an amenable number.

47102689 is a deficient number, since it is larger than the sum of its proper divisors (2137537).

47102689 is an equidigital number, since it uses as much as digits as its factorization.

47102689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89087 (or 89064 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 47102689 is about 6863.1398790932. The cubic root of 47102689 is about 361.1452443072.

The spelling of 47102689 in words is "forty-seven million, one hundred two thousand, six hundred eighty-nine".