31748 has 6 divisors (see below), whose sum is σ = 55566. Its totient is φ = 15872.

The previous prime is 31741. The next prime is 31751. The reversal of 31748 is 84713.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31684 + 64 = 178^2 + 8^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31748.

It is not an unprimeable number, because it can be changed into a prime (31741) by changing a digit.

31748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965 + ... + 3972.

It is an arithmetic number, because the mean of its divisors is an integer number (9261).

2³¹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

31748 is a deficient number, since it is larger than the sum of its proper divisors (23818).

31748 is a wasteful number, since it uses less digits than its factorization.

31748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941 (or 7939 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 31748 is about 178.1796845883. The cubic root of 31748 is about 31.6644627583.

The spelling of 31748 in words is "thirty-one thousand, seven hundred forty-eight".