247112407 has 4 divisors (see below), whose sum is σ = 247143856. Its totient is φ = 247080960.

The previous prime is 247112399. The next prime is 247112419. The reversal of 247112407 is 704211742.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 247112407 - 2³ = 247112399 is a prime.

It is a super-2 number, since 2×247112407² = 122129083386667298, 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 (247112707) 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, 7318 + ... + 23404.

It is an arithmetic number, because the mean of its divisors is an integer number (61785964).

Almost surely, 2^247112407 is an apocalyptic number.

247112407 is a deficient number, since it is larger than the sum of its proper divisors (31449).

247112407 is a wasteful number, since it uses less digits than its factorization.

247112407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31448.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 247112407 is about 15719.8093817960. The cubic root of 247112407 is about 627.5257002326.

It can be divided in two parts, 2471 and 12407, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 247112407 in words is "two hundred forty-seven million, one hundred twelve thousand, four hundred seven".