47337881 has 4 divisors (see below), whose sum is σ = 47358564. Its totient is φ = 47317200.

The previous prime is 47337869. The next prime is 47337893. The reversal of 47337881 is 18873374.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (47337869) and next prime (47337893).

It can be written as a sum of positive squares in 2 ways, for example, as 38688400 + 8649481 = 6220^2 + 2941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47337881 is a prime.

It is a super-2 number, since 2×47337881² = 4481749955140322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47337581) 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, 6410 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (11839641).

Almost surely, 2^47337881 is an apocalyptic number.

It is an amenable number.

47337881 is a deficient number, since it is larger than the sum of its proper divisors (20683).

47337881 is a wasteful number, since it uses less digits than its factorization.

47337881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20682.

The product of its digits is 112896, while the sum is 41.

The square root of 47337881 is about 6880.2529750003. The cubic root of 47337881 is about 361.7453338424.

The spelling of 47337881 in words is "forty-seven million, three hundred thirty-seven thousand, eight hundred eighty-one".