47388047 has 12 divisors (see below), whose sum is σ = 55358856. Its totient is φ = 40446000.

The previous prime is 47388043. The next prime is 47388049. The reversal of 47388047 is 74088374.

It is not a de Polignac number, because 47388047 - 2² = 47388043 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47387995 and 47388013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47388043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10373 + ... + 14225.

It is an arithmetic number, because the mean of its divisors is an integer number (4613238).

Almost surely, 2^47388047 is an apocalyptic number.

47388047 is a deficient number, since it is larger than the sum of its proper divisors (7970809).

47388047 is a wasteful number, since it uses less digits than its factorization.

47388047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 47388047 is about 6883.8976604828. The cubic root of 47388047 is about 361.8730744546.

The spelling of 47388047 in words is "forty-seven million, three hundred eighty-eight thousand, forty-seven".