2217240497 has 8 divisors (see below), whose sum is σ = 2291013120. Its totient is φ = 2143608480.

The previous prime is 2217240491. The next prime is 2217240527. The reversal of 2217240497 is 7940427122.

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 2217240497 - 2²² = 2213046193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2217240497.

It is not an unprimeable number, because it can be changed into a prime (2217240491) 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 7 ways as a sum of consecutive naturals, for example, 2597 + ... + 66642.

It is an arithmetic number, because the mean of its divisors is an integer number (286376640).

Almost surely, 2^2217240497 is an apocalyptic number.

It is an amenable number.

2217240497 is a deficient number, since it is larger than the sum of its proper divisors (73772623).

2217240497 is a wasteful number, since it uses less digits than its factorization.

2217240497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70303.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2217240497 is about 47087.5832571603. The cubic root of 2217240497 is about 1303.9800110555.

The spelling of 2217240497 in words is "two billion, two hundred seventeen million, two hundred forty thousand, four hundred ninety-seven".