247090065 has 16 divisors (see below), whose sum is σ = 395635968. Its totient is φ = 131684096.

The previous prime is 247090061. The next prime is 247090069. The reversal of 247090065 is 560090742.

It is an interprime number because it is at equal distance from previous prime (247090061) and next prime (247090069).

It is a cyclic number.

It is not a de Polignac number, because 247090065 - 2² = 247090061 is a prime.

It is a super-2 number, since 2×247090065² = 122107000443408450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (247090061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17992 + ... + 28598.

It is an arithmetic number, because the mean of its divisors is an integer number (24727248).

Almost surely, 2^247090065 is an apocalyptic number.

It is an amenable number.

247090065 is a deficient number, since it is larger than the sum of its proper divisors (148545903).

247090065 is a wasteful number, since it uses less digits than its factorization.

247090065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 247090065 is about 15719.0987337061. The cubic root of 247090065 is about 627.5067876495.

The spelling of 247090065 in words is "two hundred forty-seven million, ninety thousand, sixty-five".