247985092 has 12 divisors (see below), whose sum is σ = 442162476. Its totient is φ = 121652960.

The previous prime is 247985077. The next prime is 247985099. The reversal of 247985092 is 290589742.

It can be written as a sum of positive squares in 2 ways, for example, as 183439936 + 64545156 = 13544^2 + 8034^2 .

It is a super-2 number, since 2×247985092² = 122993211708496928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247985099) 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 3 ways as a sum of consecutive naturals, for example, 584659 + ... + 585082.

It is an arithmetic number, because the mean of its divisors is an integer number (36846873).

Almost surely, 2^247985092 is an apocalyptic number.

It is an amenable number.

247985092 is a deficient number, since it is larger than the sum of its proper divisors (194177384).

247985092 is a wasteful number, since it uses less digits than its factorization.

247985092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169798 (or 1169796 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 247985092 is about 15747.5424114368. The cubic root of 247985092 is about 628.2635410586.

It can be divided in two parts, 24798 and 5092, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 247985092 in words is "two hundred forty-seven million, nine hundred eighty-five thousand, ninety-two".