47458 has 8 divisors (see below), whose sum is σ = 72540. Its totient is φ = 23280.

The previous prime is 47441. The next prime is 47459. The reversal of 47458 is 85474.

47458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38809 + 8649 = 197^2 + 93^2 .

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (47459) 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, 73 + ... + 316.

2⁴⁷⁴⁵⁸ is an apocalyptic number.

47458 is a deficient number, since it is larger than the sum of its proper divisors (25082).

47458 is a wasteful number, since it uses less digits than its factorization.

47458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 4480, while the sum is 28.

The square root of 47458 is about 217.8485712599. The cubic root of 47458 is about 36.2051049443.

It can be divided in two parts, 4745 and 8, that added together give a triangular number (4753 = T₉₇).

The spelling of 47458 in words is "forty-seven thousand, four hundred fifty-eight".