47085257 has 8 divisors (see below), whose sum is σ = 50036256. Its totient is φ = 44154432.

The previous prime is 47085251. The next prime is 47085263. The reversal of 47085257 is 75258074.

It is an interprime number because it is at equal distance from previous prime (47085251) and next prime (47085263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47085257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47085257.

It is not an unprimeable number, because it can be changed into a prime (47085251) 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, 83 + ... + 9704.

It is an arithmetic number, because the mean of its divisors is an integer number (6254532).

Almost surely, 2^47085257 is an apocalyptic number.

It is an amenable number.

47085257 is a deficient number, since it is larger than the sum of its proper divisors (2950999).

47085257 is a wasteful number, since it uses less digits than its factorization.

47085257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 47085257 is about 6861.8697889132. The cubic root of 47085257 is about 361.1006873274.

The spelling of 47085257 in words is "forty-seven million, eighty-five thousand, two hundred fifty-seven".