47320385 has 16 divisors (see below), whose sum is σ = 65235456. Its totient is φ = 32278848.

The previous prime is 47320381. The next prime is 47320411. The reversal of 47320385 is 58302374.

It is a happy number.

It is not a de Polignac number, because 47320385 - 2² = 47320381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47320381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3464 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (4077216).

Almost surely, 2^47320385 is an apocalyptic number.

It is an amenable number.

47320385 is a deficient number, since it is larger than the sum of its proper divisors (17915071).

47320385 is a wasteful number, since it uses less digits than its factorization.

47320385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 47320385 is about 6878.9813926191. The cubic root of 47320385 is about 361.7007615314.

The spelling of 47320385 in words is "forty-seven million, three hundred twenty thousand, three hundred eighty-five".