47784623 has 2 divisors, whose sum is σ = 47784624. Its totient is φ = 47784622.

The previous prime is 47784599. The next prime is 47784629. The reversal of 47784623 is 32648774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47784623 - 2¹⁰ = 47783599 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47784629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23892311 + 23892312.

It is an arithmetic number, because the mean of its divisors is an integer number (23892312).

Almost surely, 2^47784623 is an apocalyptic number.

47784623 is a deficient number, since it is larger than the sum of its proper divisors (1).

47784623 is an equidigital number, since it uses as much as digits as its factorization.

47784623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 47784623 is about 6912.6422589340. The cubic root of 47784623 is about 362.8797396758.

The spelling of 47784623 in words is "forty-seven million, seven hundred eighty-four thousand, six hundred twenty-three".