47289813 has 8 divisors (see below), whose sum is σ = 63455328. Its totient is φ = 31325424.

The previous prime is 47289793. The next prime is 47289829. The reversal of 47289813 is 31898274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47289813 - 2¹³ = 47281621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47289013) 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, 49731 + ... + 50672.

It is an arithmetic number, because the mean of its divisors is an integer number (7931916).

Almost surely, 2^47289813 is an apocalyptic number.

It is an amenable number.

47289813 is a deficient number, since it is larger than the sum of its proper divisors (16165515).

47289813 is a wasteful number, since it uses less digits than its factorization.

47289813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100563.

The product of its digits is 96768, while the sum is 42.

The square root of 47289813 is about 6876.7589022737. The cubic root of 47289813 is about 361.6228507966.

It can be divided in two parts, 4728 and 9813, that added together give a palindrome (14541).

The spelling of 47289813 in words is "forty-seven million, two hundred eighty-nine thousand, eight hundred thirteen".