47317649 has 8 divisors (see below), whose sum is σ = 48566952. Its totient is φ = 46072960.

The previous prime is 47317637. The next prime is 47317679. The reversal of 47317649 is 94671374.

It can be written as a sum of positive squares in 4 ways, for example, as 148225 + 47169424 = 385^2 + 6868^2 .

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 47317649 - 2¹⁶ = 47252113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47317679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30947 + ... + 32439.

It is an arithmetic number, because the mean of its divisors is an integer number (6070869).

Almost surely, 2^47317649 is an apocalyptic number.

It is an amenable number.

47317649 is a deficient number, since it is larger than the sum of its proper divisors (1249303).

47317649 is a wasteful number, since it uses less digits than its factorization.

47317649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its digits is 127008, while the sum is 41.

The square root of 47317649 is about 6878.7825230923. The cubic root of 47317649 is about 361.6937903825.

The spelling of 47317649 in words is "forty-seven million, three hundred seventeen thousand, six hundred forty-nine".