47458257 has 48 divisors (see below), whose sum is σ = 83758080. Its totient is φ = 23332320.

The previous prime is 47458247. The next prime is 47458261. The reversal of 47458257 is 75285474.

47458257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47458257 - 2⁶ = 47458193 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47458207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47788 + ... + 48770.

It is an arithmetic number, because the mean of its divisors is an integer number (1744960).

Almost surely, 2^47458257 is an apocalyptic number.

It is an amenable number.

47458257 is a deficient number, since it is larger than the sum of its proper divisors (36299823).

47458257 is a wasteful number, since it uses less digits than its factorization.

47458257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1023 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

The square root of 47458257 is about 6888.9953549121. The cubic root of 47458257 is about 362.0517029821.

The spelling of 47458257 in words is "forty-seven million, four hundred fifty-eight thousand, two hundred fifty-seven".