47493439 has 4 divisors (see below), whose sum is σ = 54278224. Its totient is φ = 40708656.

The previous prime is 47493437. The next prime is 47493449. The reversal of 47493439 is 93439474.

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 47493439 - 2¹ = 47493437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47493395 and 47493404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47493437) 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, 3392382 + ... + 3392395.

It is an arithmetic number, because the mean of its divisors is an integer number (13569556).

Almost surely, 2^47493439 is an apocalyptic number.

47493439 is a deficient number, since it is larger than the sum of its proper divisors (6784785).

47493439 is an equidigital number, since it uses as much as digits as its factorization.

47493439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784784.

The product of its digits is 326592, while the sum is 43.

The square root of 47493439 is about 6891.5483746398. The cubic root of 47493439 is about 362.1411468957.

The spelling of 47493439 in words is "forty-seven million, four hundred ninety-three thousand, four hundred thirty-nine".