47315609 has 16 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 41692560.

The previous prime is 47315557. The next prime is 47315621. The reversal of 47315609 is 90651374.

It is a cyclic number.

It is not a de Polignac number, because 47315609 - 2²⁴ = 30538393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47315309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78692 + ... + 79290.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^47315609 is an apocalyptic number.

It is an amenable number.

47315609 is a deficient number, since it is larger than the sum of its proper divisors (5906791).

47315609 is a wasteful number, since it uses less digits than its factorization.

47315609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 47315609 is about 6878.6342394403. The cubic root of 47315609 is about 361.6885924211.

The spelling of 47315609 in words is "forty-seven million, three hundred fifteen thousand, six hundred nine".