47689197 has 4 divisors (see below), whose sum is σ = 63585600. Its totient is φ = 31792796.

The previous prime is 47689171. The next prime is 47689211. The reversal of 47689197 is 79198674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47689197 - 2⁸ = 47688941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47687197) 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, 7948197 + ... + 7948202.

It is an arithmetic number, because the mean of its divisors is an integer number (15896400).

Almost surely, 2^47689197 is an apocalyptic number.

It is an amenable number.

47689197 is a deficient number, since it is larger than the sum of its proper divisors (15896403).

47689197 is a wasteful number, since it uses less digits than its factorization.

47689197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15896402.

The product of its digits is 762048, while the sum is 51.

The square root of 47689197 is about 6905.7365284233. The cubic root of 47689197 is about 362.6380214806.

The spelling of 47689197 in words is "forty-seven million, six hundred eighty-nine thousand, one hundred ninety-seven".