248939847 has 12 divisors (see below), whose sum is σ = 387239944. Its totient is φ = 153193680.

The previous prime is 248939839. The next prime is 248939849. The reversal of 248939847 is 748939842.

248939847 is a `hidden beast` number, since 248 + 9 + 398 + 4 + 7 = 666.

It is not a de Polignac number, because 248939847 - 2³ = 248939839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248939793 and 248939802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248939849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063729 + ... + 1063962.

Almost surely, 2^248939847 is an apocalyptic number.

248939847 is a deficient number, since it is larger than the sum of its proper divisors (138300097).

248939847 is a wasteful number, since it uses less digits than its factorization.

248939847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127710 (or 2127707 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 248939847 is about 15777.8277021902. The cubic root of 248939847 is about 629.0687905366.

The spelling of 248939847 in words is "two hundred forty-eight million, nine hundred thirty-nine thousand, eight hundred forty-seven".