47887479 has 12 divisors (see below), whose sum is σ = 69784416. Its totient is φ = 31641792.

The previous prime is 47887471. The next prime is 47887507. The reversal of 47887479 is 97478874.

It is not a de Polignac number, because 47887479 - 2³ = 47887471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47887471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22527 + ... + 24560.

It is an arithmetic number, because the mean of its divisors is an integer number (5815368).

Almost surely, 2^47887479 is an apocalyptic number.

47887479 is a deficient number, since it is larger than the sum of its proper divisors (21896937).

47887479 is a wasteful number, since it uses less digits than its factorization.

47887479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47206 (or 47203 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 47887479 is about 6920.0779619886. The cubic root of 47887479 is about 363.1399182857.

The spelling of 47887479 in words is "forty-seven million, eight hundred eighty-seven thousand, four hundred seventy-nine".