816214017 has 16 divisors (see below), whose sum is σ = 1106128640. Its totient is φ = 535272192.

The previous prime is 816213997. The next prime is 816214031. The reversal of 816214017 is 710412618.

It is not a de Polignac number, because 816214017 - 2¹⁴ = 816197633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816214417) 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, 59433 + ... + 71865.

It is an arithmetic number, because the mean of its divisors is an integer number (69133040).

Almost surely, 2^816214017 is an apocalyptic number.

It is an amenable number.

816214017 is a deficient number, since it is larger than the sum of its proper divisors (289914623).

816214017 is a wasteful number, since it uses less digits than its factorization.

816214017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 816214017 is about 28569.4595153636. The cubic root of 816214017 is about 934.5474344267.

The spelling of 816214017 in words is "eight hundred sixteen million, two hundred fourteen thousand, seventeen".