47783969 has 2 divisors, whose sum is σ = 47783970. Its totient is φ = 47783968.

The previous prime is 47783947. The next prime is 47783999. The reversal of 47783969 is 96938774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46403344 + 1380625 = 6812^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 47783969 - 2⁸ = 47783713 is a prime.

It is a super-2 number, since 2×47783969² = 4566615386785922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47783969.

It is not a weakly prime, because it can be changed into another prime (47783929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23891984 + 23891985.

It is an arithmetic number, because the mean of its divisors is an integer number (23891985).

Almost surely, 2^47783969 is an apocalyptic number.

It is an amenable number.

47783969 is a deficient number, since it is larger than the sum of its proper divisors (1).

47783969 is an equidigital number, since it uses as much as digits as its factorization.

47783969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 47783969 is about 6912.5949541399. The cubic root of 47783969 is about 362.8780841611.

The spelling of 47783969 in words is "forty-seven million, seven hundred eighty-three thousand, nine hundred sixty-nine".