897249718 has 8 divisors (see below), whose sum is σ = 1346095800. Its totient is φ = 448551120.

The previous prime is 897249707. The next prime is 897249733. The reversal of 897249718 is 817942798.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20143 + ... + 46906.

It is an arithmetic number, because the mean of its divisors is an integer number (168261975).

Almost surely, 2^897249718 is an apocalyptic number.

897249718 is a deficient number, since it is larger than the sum of its proper divisors (448846082).

897249718 is a wasteful number, since it uses less digits than its factorization.

897249718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73742.

The product of its digits is 2032128, while the sum is 55.

The square root of 897249718 is about 29954.1268943029. The cubic root of 897249718 is about 964.5049114590.

The spelling of 897249718 in words is "eight hundred ninety-seven million, two hundred forty-nine thousand, seven hundred eighteen".