239648 has 12 divisors (see below), whose sum is σ = 471870. Its totient is φ = 119808.

The previous prime is 239641. The next prime is 239671. The reversal of 239648 is 846932.

239648 = T₁₇ + T₁₈ + ... + T₁₁₂.

It can be written as a sum of positive squares in only one way, i.e., 204304 + 35344 = 452^2 + 188^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 7489 = 239648 / (2 + 3 + 9 + 6 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239641) by changing a digit.

239648 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, 3713 + ... + 3776.

2²³⁹⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

239648 is a deficient number, since it is larger than the sum of its proper divisors (232222).

239648 is an equidigital number, since it uses as much as digits as its factorization.

239648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499 (or 7491 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 239648 is about 489.5385582362. The cubic root of 239648 is about 62.1142534247.

The spelling of 239648 in words is "two hundred thirty-nine thousand, six hundred forty-eight".