47085449 has 4 divisors (see below), whose sum is σ = 47570964. Its totient is φ = 46599936.

The previous prime is 47085443. The next prime is 47085463. The reversal of 47085449 is 94458074.

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 26337424 + 20748025 = 5132^2 + 4555^2 .

It is a cyclic number.

It is not a de Polignac number, because 47085449 - 2¹⁶ = 47019913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47085443) 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, 242612 + ... + 242805.

It is an arithmetic number, because the mean of its divisors is an integer number (11892741).

Almost surely, 2^47085449 is an apocalyptic number.

It is an amenable number.

47085449 is a deficient number, since it is larger than the sum of its proper divisors (485515).

47085449 is an equidigital number, since it uses as much as digits as its factorization.

47085449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485514.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 47085449 is about 6861.8837792548. The cubic root of 47085449 is about 361.1011781480.

The spelling of 47085449 in words is "forty-seven million, eighty-five thousand, four hundred forty-nine".