247760065 has 8 divisors (see below), whose sum is σ = 339785280. Its totient is φ = 169892592.

The previous prime is 247760059. The next prime is 247760113. The reversal of 247760065 is 560067742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247760065 - 2⁵ = 247760033 is a prime.

It is a super-2 number, since 2×247760065² = 122770099617608450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3539395 + ... + 3539464.

It is an arithmetic number, because the mean of its divisors is an integer number (42473160).

Almost surely, 2^247760065 is an apocalyptic number.

It is an amenable number.

247760065 is a deficient number, since it is larger than the sum of its proper divisors (92025215).

247760065 is an equidigital number, since it uses as much as digits as its factorization.

247760065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078871.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 247760065 is about 15740.3959607120. The cubic root of 247760065 is about 628.0734502714.

The spelling of 247760065 in words is "two hundred forty-seven million, seven hundred sixty thousand, sixty-five".