247888948 has 6 divisors (see below), whose sum is σ = 433805666. Its totient is φ = 123944472.

The previous prime is 247888943. The next prime is 247888957. The reversal of 247888948 is 849888742.

It can be written as a sum of positive squares in only one way, i.e., 247684644 + 204304 = 15738^2 + 452^2 .

It is a super-2 number, since 2×247888948² = 122897861081093408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247888892 and 247888901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247888943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30986115 + ... + 30986122.

Almost surely, 2^247888948 is an apocalyptic number.

It is an amenable number.

247888948 is a deficient number, since it is larger than the sum of its proper divisors (185916718).

247888948 is a wasteful number, since it uses less digits than its factorization.

247888948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61972241 (or 61972239 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 58.

The square root of 247888948 is about 15744.4894486928. The cubic root of 247888948 is about 628.1823378200.

The spelling of 247888948 in words is "two hundred forty-seven million, eight hundred eighty-eight thousand, nine hundred forty-eight".