47384749 has 4 divisors (see below), whose sum is σ = 47553660. Its totient is φ = 47215840.

The previous prime is 47384737. The next prime is 47384759. The reversal of 47384749 is 94748374.

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 41538025 + 5846724 = 6445^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 47384749 - 2¹¹ = 47382701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47384699 and 47384708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47384719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84034 + ... + 84595.

It is an arithmetic number, because the mean of its divisors is an integer number (11888415).

Almost surely, 2^47384749 is an apocalyptic number.

It is an amenable number.

47384749 is a deficient number, since it is larger than the sum of its proper divisors (168911).

47384749 is a wasteful number, since it uses less digits than its factorization.

47384749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168910.

The product of its digits is 677376, while the sum is 46.

The square root of 47384749 is about 6883.6581117891. The cubic root of 47384749 is about 361.8646793341.

The spelling of 47384749 in words is "forty-seven million, three hundred eighty-four thousand, seven hundred forty-nine".