47281897 has 16 divisors (see below), whose sum is σ = 53399808. Its totient is φ = 41569920.

The previous prime is 47281889. The next prime is 47281901. The reversal of 47281897 is 79818274.

It is a cyclic number.

It is not a de Polignac number, because 47281897 - 2³ = 47281889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47281807) 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, 21888 + ... + 23950.

It is an arithmetic number, because the mean of its divisors is an integer number (3337488).

Almost surely, 2^47281897 is an apocalyptic number.

It is an amenable number.

47281897 is a deficient number, since it is larger than the sum of its proper divisors (6117911).

47281897 is a wasteful number, since it uses less digits than its factorization.

47281897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its digits is 225792, while the sum is 46.

The square root of 47281897 is about 6876.1833163464. The cubic root of 47281897 is about 361.6026719177.

It can be divided in two parts, 472 and 81897, that added together give a square (82369 = 287²).

The spelling of 47281897 in words is "forty-seven million, two hundred eighty-one thousand, eight hundred ninety-seven".