47738 has 4 divisors (see below), whose sum is σ = 71610. Its totient is φ = 23868.

The previous prime is 47737. The next prime is 47741. The reversal of 47738 is 83774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83774 = 2 ⋅41887.

It can be written as a sum of positive squares in only one way, i.e., 34969 + 12769 = 187^2 + 113^2 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 47738.

It is not an unprimeable number, because it can be changed into a prime (47737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11933 + ... + 11936.

2⁴⁷⁷³⁸ is an apocalyptic number.

47738 is a deficient number, since it is larger than the sum of its proper divisors (23872).

47738 is a wasteful number, since it uses less digits than its factorization.

47738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23871.

The product of its digits is 4704, while the sum is 29.

The square root of 47738 is about 218.4902743831. The cubic root of 47738 is about 36.2761681840.

Subtracting from 47738 its product of digits (4704), we obtain a palindrome (43034).

It can be divided in two parts, 477 and 38, that added together give a palindrome (515).

The spelling of 47738 in words is "forty-seven thousand, seven hundred thirty-eight".