247899212 has 12 divisors (see below), whose sum is σ = 473262216. Its totient is φ = 112681440.

The previous prime is 247899199. The next prime is 247899241. The reversal of 247899212 is 212998742.

It is a super-2 number, since 2×247899212² = 122908038620441888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 5634073 = 247899212 / (2 + 4 + 7 + 8 + 9 + 9 + 2 + 1 + 2).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2816993 + ... + 2817080.

It is an arithmetic number, because the mean of its divisors is an integer number (39438518).

Almost surely, 2^247899212 is an apocalyptic number.

247899212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

247899212 is a deficient number, since it is larger than the sum of its proper divisors (225363004).

247899212 is a wasteful number, since it uses less digits than its factorization.

247899212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634088 (or 5634086 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 247899212 is about 15744.8154006327. The cubic root of 247899212 is about 628.1910077972.

The spelling of 247899212 in words is "two hundred forty-seven million, eight hundred ninety-nine thousand, two hundred twelve".