47539423 has 4 divisors (see below), whose sum is σ = 47553880. Its totient is φ = 47524968.

The previous prime is 47539417. The next prime is 47539433. The reversal of 47539423 is 32493574.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47539423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47539403) 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, 361 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (11888470).

Almost surely, 2^47539423 is an apocalyptic number.

47539423 is a deficient number, since it is larger than the sum of its proper divisors (14457).

47539423 is an equidigital number, since it uses as much as digits as its factorization.

47539423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456.

The product of its digits is 90720, while the sum is 37.

The square root of 47539423 is about 6894.8838278828. The cubic root of 47539423 is about 362.2579863811.

The spelling of 47539423 in words is "forty-seven million, five hundred thirty-nine thousand, four hundred twenty-three".