248539479 has 4 divisors (see below), whose sum is σ = 331385976. Its totient is φ = 165692984.

The previous prime is 248539477. The next prime is 248539481. The reversal of 248539479 is 974935842.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (248539477) and next prime (248539481).

It is a cyclic number.

It is not a de Polignac number, because 248539479 - 2¹ = 248539477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248539477) 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, 41423244 + ... + 41423249.

It is an arithmetic number, because the mean of its divisors is an integer number (82846494).

Almost surely, 2^248539479 is an apocalyptic number.

248539479 is a deficient number, since it is larger than the sum of its proper divisors (82846497).

248539479 is an equidigital number, since it uses as much as digits as its factorization.

248539479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82846496.

The product of its digits is 2177280, while the sum is 51.

The square root of 248539479 is about 15765.1349185473. The cubic root of 248539479 is about 628.7313674492.

The spelling of 248539479 in words is "two hundred forty-eight million, five hundred thirty-nine thousand, four hundred seventy-nine".