247312412 has 12 divisors (see below), whose sum is σ = 432948096. Its totient is φ = 123612960.

The previous prime is 247312409. The next prime is 247312441. The reversal of 247312412 is 214213742.

It is a super-2 number, since 2×247312412² = 122326858258515488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4448 + ... + 22680.

It is an arithmetic number, because the mean of its divisors is an integer number (36079008).

Almost surely, 2^247312412 is an apocalyptic number.

It is an amenable number.

247312412 is a deficient number, since it is larger than the sum of its proper divisors (185635684).

247312412 is a wasteful number, since it uses less digits than its factorization.

247312412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21628 (or 21626 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 247312412 is about 15726.1696544327. The cubic root of 247312412 is about 627.6949544242.

The spelling of 247312412 in words is "two hundred forty-seven million, three hundred twelve thousand, four hundred twelve".