247948648 has 48 divisors (see below), whose sum is σ = 498197700. Its totient is φ = 115610880.

The previous prime is 247948643. The next prime is 247948669. The reversal of 247948648 is 846849742.

It can be written as a sum of positive squares in 2 ways, for example, as 181656484 + 66292164 = 13478^2 + 8142^2 .

It is a super-2 number, since 2×247948648² = 122957064090055808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247948595 and 247948604.

It is not an unprimeable number, because it can be changed into a prime (247948643) 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, 172798 + ... + 174226.

Almost surely, 2^247948648 is an apocalyptic number.

It is an amenable number.

247948648 is an abundant number, since it is smaller than the sum of its proper divisors (250249052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247948648 is a wasteful number, since it uses less digits than its factorization.

247948648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1495 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The square root of 247948648 is about 15746.3852359835. The cubic root of 247948648 is about 628.2327629205.

The spelling of 247948648 in words is "two hundred forty-seven million, nine hundred forty-eight thousand, six hundred forty-eight".