47871605 has 8 divisors (see below), whose sum is σ = 59427000. Its totient is φ = 36976576.

The previous prime is 47871589. The next prime is 47871617. The reversal of 47871605 is 50617874.

It can be written as a sum of positive squares in 4 ways, for example, as 7409284 + 40462321 = 2722^2 + 6361^2 .

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 47871605 - 2⁴ = 47871589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164930 + ... + 165219.

It is an arithmetic number, because the mean of its divisors is an integer number (7428375).

Almost surely, 2^47871605 is an apocalyptic number.

It is an amenable number.

47871605 is a deficient number, since it is larger than the sum of its proper divisors (11555395).

47871605 is a wasteful number, since it uses less digits than its factorization.

47871605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330183.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 47871605 is about 6918.9309145272. The cubic root of 47871605 is about 363.0997886579.

The spelling of 47871605 in words is "forty-seven million, eight hundred seventy-one thousand, six hundred five".