248717879 has 4 divisors (see below), whose sum is σ = 248749440. Its totient is φ = 248686320.

The previous prime is 248717873. The next prime is 248717881. The reversal of 248717879 is 978717842.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 248717879 - 2²⁴ = 231940663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248717879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248717873) 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, 7082 + ... + 23400.

It is an arithmetic number, because the mean of its divisors is an integer number (62187360).

Almost surely, 2^248717879 is an apocalyptic number.

248717879 is a deficient number, since it is larger than the sum of its proper divisors (31561).

248717879 is a wasteful number, since it uses less digits than its factorization.

248717879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31560.

The product of its digits is 1580544, while the sum is 53.

The square root of 248717879 is about 15770.7919585543. The cubic root of 248717879 is about 628.8817645476.

The spelling of 248717879 in words is "two hundred forty-eight million, seven hundred seventeen thousand, eight hundred seventy-nine".