47140839 has 8 divisors (see below), whose sum is σ = 69838320. Its totient is φ = 31427208.

The previous prime is 47140831. The next prime is 47140853. The reversal of 47140839 is 93804174.

It is a happy number.

It is not a de Polignac number, because 47140839 - 2³ = 47140831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47140831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872952 + ... + 873005.

It is an arithmetic number, because the mean of its divisors is an integer number (8729790).

Almost surely, 2^47140839 is an apocalyptic number.

47140839 is a deficient number, since it is larger than the sum of its proper divisors (22697481).

47140839 is a wasteful number, since it uses less digits than its factorization.

47140839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745966 (or 1745960 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 47140839 is about 6865.9186566693. The cubic root of 47140839 is about 361.2427190895.

The spelling of 47140839 in words is "forty-seven million, one hundred forty thousand, eight hundred thirty-nine".