897716219 has 4 divisors (see below), whose sum is σ = 901671144. Its totient is φ = 893761296.

The previous prime is 897716207. The next prime is 897716221. The reversal of 897716219 is 912617798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 897716219 - 2⁸ = 897715963 is a prime.

It is a super-2 number, since 2×897716219² = 1611788819711311922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897716249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1977122 + ... + 1977575.

It is an arithmetic number, because the mean of its divisors is an integer number (225417786).

Almost surely, 2^897716219 is an apocalyptic number.

897716219 is a deficient number, since it is larger than the sum of its proper divisors (3954925).

897716219 is a wasteful number, since it uses less digits than its factorization.

897716219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954924.

The product of its digits is 381024, while the sum is 50.

The square root of 897716219 is about 29961.9128060943. The cubic root of 897716219 is about 964.6720386777.

The spelling of 897716219 in words is "eight hundred ninety-seven million, seven hundred sixteen thousand, two hundred nineteen".