47881311 has 8 divisors (see below), whose sum is σ = 67201920. Its totient is φ = 30240792.

The previous prime is 47881303. The next prime is 47881343. The reversal of 47881311 is 11318874.

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

It is not a de Polignac number, because 47881311 - 2³ = 47881303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47881111) 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, 419955 + ... + 420068.

It is an arithmetic number, because the mean of its divisors is an integer number (8400240).

Almost surely, 2^47881311 is an apocalyptic number.

47881311 is a deficient number, since it is larger than the sum of its proper divisors (19320609).

47881311 is a wasteful number, since it uses less digits than its factorization.

47881311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840045.

The product of its digits is 5376, while the sum is 33.

The square root of 47881311 is about 6919.6322879182. The cubic root of 47881311 is about 363.1243265748.

The spelling of 47881311 in words is "forty-seven million, eight hundred eighty-one thousand, three hundred eleven".