247948384 has 12 divisors (see below), whose sum is σ = 488148444. Its totient is φ = 123974176.

The previous prime is 247948381. The next prime is 247948391. The reversal of 247948384 is 483849742.

It is a happy number.

247948384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247948384² = 122956802256422912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247948381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3874162 + ... + 3874225.

It is an arithmetic number, because the mean of its divisors is an integer number (40679037).

Almost surely, 2^247948384 is an apocalyptic number.

It is an amenable number.

247948384 is a deficient number, since it is larger than the sum of its proper divisors (240200060).

247948384 is an equidigital number, since it uses as much as digits as its factorization.

247948384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748397 (or 7748389 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 247948384 is about 15746.3768531050. The cubic root of 247948384 is about 628.2325399530.

The spelling of 247948384 in words is "two hundred forty-seven million, nine hundred forty-eight thousand, three hundred eighty-four".