47198681 has 8 divisors (see below), whose sum is σ = 50038560. Its totient is φ = 44365888.

The previous prime is 47198677. The next prime is 47198687. The reversal of 47198681 is 18689174.

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

It is a cyclic number.

It is not a de Polignac number, because 47198681 - 2² = 47198677 is a prime.

It is a super-2 number, since 2×47198681² = 4455430976279522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47198687) 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, 19010 + ... + 21348.

It is an arithmetic number, because the mean of its divisors is an integer number (6254820).

Almost surely, 2^47198681 is an apocalyptic number.

It is an amenable number.

47198681 is a deficient number, since it is larger than the sum of its proper divisors (2839879).

47198681 is a wasteful number, since it uses less digits than its factorization.

47198681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543.

The product of its digits is 96768, while the sum is 44.

The square root of 47198681 is about 6870.1296203201. The cubic root of 47198681 is about 361.3904074601.

The spelling of 47198681 in words is "forty-seven million, one hundred ninety-eight thousand, six hundred eighty-one".