47117320 has 16 divisors (see below), whose sum is σ = 106014060. Its totient is φ = 18846912.

The previous prime is 47117309. The next prime is 47117347. The reversal of 47117320 is 2371174.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47087044 + 30276 = 6862^2 + 174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588927 + ... + 589006.

Almost surely, 2^47117320 is an apocalyptic number.

47117320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47117320 is an abundant number, since it is smaller than the sum of its proper divisors (58896740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47117320 is a wasteful number, since it uses less digits than its factorization.

47117320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177944 (or 1177940 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 47117320 is about 6864.2057078733. The cubic root of 47117320 is about 361.1826333196.

Adding to 47117320 its reverse (2371174), we get a palindrome (49488494).

The spelling of 47117320 in words is "forty-seven million, one hundred seventeen thousand, three hundred twenty".