247882487 has 12 divisors (see below), whose sum is σ = 257145120. Its totient is φ = 238912128.

The previous prime is 247882483. The next prime is 247882511. The reversal of 247882487 is 784288742.

It is not a de Polignac number, because 247882487 - 2² = 247882483 is a prime.

It is a super-2 number, since 2×247882487² = 122891454722610338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247882483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145223 + ... + 146919.

It is an arithmetic number, because the mean of its divisors is an integer number (21428760).

Almost surely, 2^247882487 is an apocalyptic number.

247882487 is a deficient number, since it is larger than the sum of its proper divisors (9262633).

247882487 is an equidigital number, since it uses as much as digits as its factorization.

247882487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 1819 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 50.

The square root of 247882487 is about 15744.2842644561. The cubic root of 247882487 is about 628.1768801055.

The spelling of 247882487 in words is "two hundred forty-seven million, eight hundred eighty-two thousand, four hundred eighty-seven".