47785799 has 2 divisors, whose sum is σ = 47785800. Its totient is φ = 47785798.

The previous prime is 47785781. The next prime is 47785841. The reversal of 47785799 is 99758774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47785799 - 2¹² = 47781703 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47785739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23892899 + 23892900.

It is an arithmetic number, because the mean of its divisors is an integer number (23892900).

Almost surely, 2^47785799 is an apocalyptic number.

47785799 is a deficient number, since it is larger than the sum of its proper divisors (1).

47785799 is an equidigital number, since it uses as much as digits as its factorization.

47785799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 56.

The square root of 47785799 is about 6912.7273199512. The cubic root of 47785799 is about 362.8827165266.

It can be divided in two parts, 47785 and 799, that added together give a palindrome (48584).

The spelling of 47785799 in words is "forty-seven million, seven hundred eighty-five thousand, seven hundred ninety-nine".