247897328 has 40 divisors (see below), whose sum is σ = 566630400. Its totient is φ = 102813120.

The previous prime is 247897327. The next prime is 247897337. The reversal of 247897328 is 823798742.

It is a super-2 number, since 2×247897328² = 122906170459079168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247897327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32228 + ... + 39171.

It is an arithmetic number, because the mean of its divisors is an integer number (14165760).

Almost surely, 2^247897328 is an apocalyptic number.

247897328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

247897328 is an abundant number, since it is smaller than the sum of its proper divisors (318733072).

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

247897328 is a wasteful number, since it uses less digits than its factorization.

247897328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71445 (or 71439 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 247897328 is about 15744.7555713006. The cubic root of 247897328 is about 628.1894164046.

The spelling of 247897328 in words is "two hundred forty-seven million, eight hundred ninety-seven thousand, three hundred twenty-eight".