247480807 has 16 divisors (see below), whose sum is σ = 285949440. Its totient is φ = 209805408.

The previous prime is 247480799. The next prime is 247480811. The reversal of 247480807 is 708084742.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 247480807 - 2³ = 247480799 is a prime.

It is a super-2 number, since 2×247480807² = 122493499666742498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247480807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247480817) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 314068 + ... + 314854.

It is an arithmetic number, because the mean of its divisors is an integer number (17871840).

Almost surely, 2^247480807 is an apocalyptic number.

247480807 is a deficient number, since it is larger than the sum of its proper divisors (38468633).

247480807 is a wasteful number, since it uses less digits than its factorization.

247480807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 247480807 is about 15731.5227171434. The cubic root of 247480807 is about 627.8373879149.

The spelling of 247480807 in words is "two hundred forty-seven million, four hundred eighty thousand, eight hundred seven".