47798 has 4 divisors (see below), whose sum is σ = 71700. Its totient is φ = 23898.

The previous prime is 47797. The next prime is 47807. The reversal of 47798 is 89774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89774 = 2 ⋅44887.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11948 + ... + 11951.

It is an arithmetic number, because the mean of its divisors is an integer number (17925).

2⁴⁷⁷⁹⁸ is an apocalyptic number.

47798 is a deficient number, since it is larger than the sum of its proper divisors (23902).

47798 is a wasteful number, since it uses less digits than its factorization.

47798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23901.

The product of its digits is 14112, while the sum is 35.

The square root of 47798 is about 218.6275371494. The cubic root of 47798 is about 36.2913598472.

It can be divided in two parts, 477 and 98, that added together give a palindrome (575).

The spelling of 47798 in words is "forty-seven thousand, seven hundred ninety-eight".