47608181 has 4 divisors (see below), whose sum is σ = 48715392. Its totient is φ = 46500972.

The previous prime is 47608139. The next prime is 47608189. The reversal of 47608181 is 18180674.

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 a de Polignac number, because none of the positive numbers 2^k-47608181 is a prime.

It is a super-2 number, since 2×47608181² = 4533077796257522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47608189) 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, 553541 + ... + 553626.

It is an arithmetic number, because the mean of its divisors is an integer number (12178848).

Almost surely, 2^47608181 is an apocalyptic number.

It is an amenable number.

47608181 is a deficient number, since it is larger than the sum of its proper divisors (1107211).

47608181 is a wasteful number, since it uses less digits than its factorization.

47608181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107210.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 47608181 is about 6899.8681871468. The cubic root of 47608181 is about 362.4325512242.

The spelling of 47608181 in words is "forty-seven million, six hundred eight thousand, one hundred eighty-one".