47233939 has 4 divisors (see below), whose sum is σ = 50012424. Its totient is φ = 44455456.

The previous prime is 47233937. The next prime is 47233961. The reversal of 47233939 is 93933274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47233939 - 2¹ = 47233937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47233931) 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, 1389217 + ... + 1389250.

It is an arithmetic number, because the mean of its divisors is an integer number (12503106).

Almost surely, 2^47233939 is an apocalyptic number.

47233939 is a deficient number, since it is larger than the sum of its proper divisors (2778485).

47233939 is a wasteful number, since it uses less digits than its factorization.

47233939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778484.

The product of its digits is 122472, while the sum is 40.

The square root of 47233939 is about 6872.6951772940. The cubic root of 47233939 is about 361.4803727673.

The spelling of 47233939 in words is "forty-seven million, two hundred thirty-three thousand, nine hundred thirty-nine".