7290905217 has 32 divisors (see below), whose sum is σ = 10223338752. Its totient is φ = 4613013504.

The previous prime is 7290905177. The next prime is 7290905231. The reversal of 7290905217 is 7125090927.

It is not a de Polignac number, because 7290905217 - 2¹⁰ = 7290904193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7290905317) 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 31 ways as a sum of consecutive naturals, for example, 5620713 + ... + 5622009.

It is an arithmetic number, because the mean of its divisors is an integer number (319479336).

Almost surely, 2^7290905217 is an apocalyptic number.

It is an amenable number.

7290905217 is a deficient number, since it is larger than the sum of its proper divisors (2932433535).

7290905217 is a wasteful number, since it uses less digits than its factorization.

7290905217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 7290905217 is about 85386.7976738793. The cubic root of 7290905217 is about 1939.0714741230.

The spelling of 7290905217 in words is "seven billion, two hundred ninety million, nine hundred five thousand, two hundred seventeen".