47484257 has 4 divisors (see below), whose sum is σ = 47556756. Its totient is φ = 47411760.

The previous prime is 47484253. The next prime is 47484263. The reversal of 47484257 is 75248474.

It is a happy number.

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 32615521 + 14868736 = 5711^2 + 3856^2 .

It is a cyclic number.

It is not a de Polignac number, because 47484257 - 2² = 47484253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47484253) 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, 35258 + ... + 36579.

It is an arithmetic number, because the mean of its divisors is an integer number (11889189).

Almost surely, 2^47484257 is an apocalyptic number.

It is an amenable number.

47484257 is a deficient number, since it is larger than the sum of its proper divisors (72499).

47484257 is an equidigital number, since it uses as much as digits as its factorization.

47484257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72498.

The product of its digits is 250880, while the sum is 41.

The square root of 47484257 is about 6890.8821641354. The cubic root of 47484257 is about 362.1178075715.

The spelling of 47484257 in words is "forty-seven million, four hundred eighty-four thousand, two hundred fifty-seven".