47671577 has 4 divisors (see below), whose sum is σ = 48960036. Its totient is φ = 46383120.

The previous prime is 47671573. The next prime is 47671619. The reversal of 47671577 is 77517674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46185616 + 1485961 = 6796^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 47671577 - 2² = 47671573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47671573) 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, 644174 + ... + 644247.

It is an arithmetic number, because the mean of its divisors is an integer number (12240009).

Almost surely, 2^47671577 is an apocalyptic number.

It is an amenable number.

47671577 is a deficient number, since it is larger than the sum of its proper divisors (1288459).

47671577 is a wasteful number, since it uses less digits than its factorization.

47671577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288458.

The product of its digits is 288120, while the sum is 44.

The square root of 47671577 is about 6904.4606596026. The cubic root of 47671577 is about 362.5933539987.

The spelling of 47671577 in words is "forty-seven million, six hundred seventy-one thousand, five hundred seventy-seven".