47814257 has 4 divisors (see below), whose sum is σ = 48107760. Its totient is φ = 47520756.

The previous prime is 47814253. The next prime is 47814269. The reversal of 47814257 is 75241874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47814257 - 2² = 47814253 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 47814257.

It is not an unprimeable number, because it can be changed into a prime (47814253) 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, 146507 + ... + 146832.

It is an arithmetic number, because the mean of its divisors is an integer number (12026940).

Almost surely, 2^47814257 is an apocalyptic number.

It is an amenable number.

47814257 is a deficient number, since it is larger than the sum of its proper divisors (293503).

47814257 is a wasteful number, since it uses less digits than its factorization.

47814257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293502.

The product of its digits is 62720, while the sum is 38.

The square root of 47814257 is about 6914.7853907406. The cubic root of 47814257 is about 362.9547383911.

The spelling of 47814257 in words is "forty-seven million, eight hundred fourteen thousand, two hundred fifty-seven".