47863789 has 4 divisors (see below), whose sum is σ = 50679324. Its totient is φ = 45048256.

The previous prime is 47863787. The next prime is 47863817. The reversal of 47863789 is 98736874.

It is a happy number.

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 27478564 + 20385225 = 5242^2 + 4515^2 .

It is a cyclic number.

It is not a de Polignac number, because 47863789 - 2¹ = 47863787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47863787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407742 + ... + 1407775.

It is an arithmetic number, because the mean of its divisors is an integer number (12669831).

Almost surely, 2^47863789 is an apocalyptic number.

It is an amenable number.

47863789 is a deficient number, since it is larger than the sum of its proper divisors (2815535).

47863789 is a wasteful number, since it uses less digits than its factorization.

47863789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815534.

The product of its digits is 2032128, while the sum is 52.

The square root of 47863789 is about 6918.3660643247. The cubic root of 47863789 is about 363.0800264738.

The spelling of 47863789 in words is "forty-seven million, eight hundred sixty-three thousand, seven hundred eighty-nine".