47983669 has 4 divisors (see below), whose sum is σ = 48478444. Its totient is φ = 47488896.

The previous prime is 47983667. The next prime is 47983693. The reversal of 47983669 is 96638974.

47983669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 27688644 + 20295025 = 5262^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 47983669 - 2¹ = 47983667 is a prime.

It is a super-2 number, since 2×47983669² = 4604864981403122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47983667) 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, 247242 + ... + 247435.

It is an arithmetic number, because the mean of its divisors is an integer number (12119611).

Almost surely, 2^47983669 is an apocalyptic number.

It is an amenable number.

47983669 is a deficient number, since it is larger than the sum of its proper divisors (494775).

47983669 is an equidigital number, since it uses as much as digits as its factorization.

47983669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494774.

The product of its digits is 1959552, while the sum is 52.

The square root of 47983669 is about 6927.0245416051. The cubic root of 47983669 is about 363.3828980629.

It can be divided in two parts, 479 and 83669, that added together give a palindrome (84148).

The spelling of 47983669 in words is "forty-seven million, nine hundred eighty-three thousand, six hundred sixty-nine".