897917834 has 8 divisors (see below), whose sum is σ = 1469320128. Its totient is φ = 408144460.

The previous prime is 897917831. The next prime is 897917851. The reversal of 897917834 is 438719798.

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

It is a self number, because there is not a number n which added to its sum of digits gives 897917834.

It is not an unprimeable number, because it can be changed into a prime (897917831) 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 3 ways as a sum of consecutive naturals, for example, 20407202 + ... + 20407245.

It is an arithmetic number, because the mean of its divisors is an integer number (183665016).

Almost surely, 2^897917834 is an apocalyptic number.

897917834 is a deficient number, since it is larger than the sum of its proper divisors (571402294).

897917834 is a wasteful number, since it uses less digits than its factorization.

897917834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40814460.

The product of its digits is 3048192, while the sum is 56.

The square root of 897917834 is about 29965.2771387151. The cubic root of 897917834 is about 964.7442507312.

The spelling of 897917834 in words is "eight hundred ninety-seven million, nine hundred seventeen thousand, eight hundred thirty-four".