247007995 has 16 divisors (see below), whose sum is σ = 319792032. Its totient is φ = 182073600.

The previous prime is 247007963. The next prime is 247008001. The reversal of 247007995 is 599700742.

It is not a de Polignac number, because 247007995 - 2⁵ = 247007963 is a prime.

It is a super-2 number, since 2×247007995² = 122025899187840050, which contains 22 as substring.

It is a Duffinian number.

247007995 is a modest number, since divided by 7995 gives 2470 as remainder.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35904 + ... + 42226.

It is an arithmetic number, because the mean of its divisors is an integer number (19987002).

Almost surely, 2^247007995 is an apocalyptic number.

247007995 is a deficient number, since it is larger than the sum of its proper divisors (72784037).

247007995 is a wasteful number, since it uses less digits than its factorization.

247007995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 247007995 is about 15716.4879982775. The cubic root of 247007995 is about 627.4373053133.

The spelling of 247007995 in words is "two hundred forty-seven million, seven thousand, nine hundred ninety-five".