248717878 has 4 divisors (see below), whose sum is σ = 373076820. Its totient is φ = 124358938.

The previous prime is 248717873. The next prime is 248717881. The reversal of 248717878 is 878717842.

248717878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878717842 = 2 ⋅439358921.

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 as a sum of consecutive naturals, namely, 62179468 + ... + 62179471.

It is an arithmetic number, because the mean of its divisors is an integer number (93269205).

Almost surely, 2^248717878 is an apocalyptic number.

248717878 is a deficient number, since it is larger than the sum of its proper divisors (124358942).

248717878 is a wasteful number, since it uses less digits than its factorization.

248717878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124358941.

The product of its digits is 1404928, while the sum is 52.

The square root of 248717878 is about 15770.7919268501. The cubic root of 248717878 is about 628.8817637047.

The spelling of 248717878 in words is "two hundred forty-eight million, seven hundred seventeen thousand, eight hundred seventy-eight".