47866257 has 12 divisors (see below), whose sum is σ = 70611840. Its totient is φ = 31231608.

The previous prime is 47866253. The next prime is 47866277. The reversal of 47866257 is 75266874.

It is not a de Polignac number, because 47866257 - 2² = 47866253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47866253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56157 + ... + 57002.

It is an arithmetic number, because the mean of its divisors is an integer number (5884320).

Almost surely, 2^47866257 is an apocalyptic number.

47866257 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

47866257 is a deficient number, since it is larger than the sum of its proper divisors (22745583).

47866257 is a wasteful number, since it uses less digits than its factorization.

47866257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113212 (or 113209 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 47866257 is about 6918.5444278403. The cubic root of 47866257 is about 363.0862668636.

The spelling of 47866257 in words is "forty-seven million, eight hundred sixty-six thousand, two hundred fifty-seven".