47134389 has 4 divisors (see below), whose sum is σ = 62845856. Its totient is φ = 31422924.

The previous prime is 47134363. The next prime is 47134393. The reversal of 47134389 is 98343174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47134389 - 2¹¹ = 47132341 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 (47134589) 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, 7855729 + ... + 7855734.

It is an arithmetic number, because the mean of its divisors is an integer number (15711464).

Almost surely, 2^47134389 is an apocalyptic number.

It is an amenable number.

47134389 is a deficient number, since it is larger than the sum of its proper divisors (15711467).

47134389 is a wasteful number, since it uses less digits than its factorization.

47134389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15711466.

The product of its digits is 72576, while the sum is 39.

The square root of 47134389 is about 6865.4489292398. The cubic root of 47134389 is about 361.2262427754.

The spelling of 47134389 in words is "forty-seven million, one hundred thirty-four thousand, three hundred eighty-nine".