47998197 has 48 divisors (see below), whose sum is σ = 78646080. Its totient is φ = 28911168.

The previous prime is 47998193. The next prime is 47998207. The reversal of 47998197 is 79189974.

47998197 is a `hidden beast` number, since 479 + 9 + 81 + 97 = 666.

It is not a de Polignac number, because 47998197 - 2² = 47998193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47998193) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 305643 + ... + 305799.

It is an arithmetic number, because the mean of its divisors is an integer number (1638460).

Almost surely, 2^47998197 is an apocalyptic number.

It is an amenable number.

47998197 is a deficient number, since it is larger than the sum of its proper divisors (30647883).

47998197 is a wasteful number, since it uses less digits than its factorization.

47998197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 240 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 47998197 is about 6928.0731087367. The cubic root of 47998197 is about 363.4195681366.

It can be divided in two parts, 4799 and 8197, that added together give a square (12996 = 114²).

The spelling of 47998197 in words is "forty-seven million, nine hundred ninety-eight thousand, one hundred ninety-seven".