897291078 has 8 divisors (see below), whose sum is σ = 1794582168. Its totient is φ = 299097024.

The previous prime is 897291067. The next prime is 897291079. The reversal of 897291078 is 870192798.

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

897291078 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 897291078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897291079) 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, 74774251 + ... + 74774262.

It is an arithmetic number, because the mean of its divisors is an integer number (224322771).

Almost surely, 2^897291078 is an apocalyptic number.

897291078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897291078 is a wasteful number, since it uses less digits than its factorization.

897291078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149548518.

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 897291078 is about 29954.8172753566. The cubic root of 897291078 is about 964.5197313058.

The spelling of 897291078 in words is "eight hundred ninety-seven million, two hundred ninety-one thousand, seventy-eight".