47671609 has 4 divisors (see below), whose sum is σ = 48047104. Its totient is φ = 47296116.

The previous prime is 47671573. The next prime is 47671619. The reversal of 47671609 is 90617674.

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 47671609 - 2⁹ = 47671097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47671619) 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, 187557 + ... + 187810.

It is an arithmetic number, because the mean of its divisors is an integer number (12011776).

Almost surely, 2^47671609 is an apocalyptic number.

It is an amenable number.

47671609 is a deficient number, since it is larger than the sum of its proper divisors (375495).

47671609 is a wasteful number, since it uses less digits than its factorization.

47671609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375494.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 47671609 is about 6904.4629769447. The cubic root of 47671609 is about 362.5934351301.

The spelling of 47671609 in words is "forty-seven million, six hundred seventy-one thousand, six hundred nine".