897151958 has 4 divisors (see below), whose sum is σ = 1345727940. Its totient is φ = 448575978.

The previous prime is 897151921. The next prime is 897151967. The reversal of 897151958 is 859151798.

It is a happy number.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 224287988 + ... + 224287991.

It is an arithmetic number, because the mean of its divisors is an integer number (336431985).

Almost surely, 2^897151958 is an apocalyptic number.

897151958 is a deficient number, since it is larger than the sum of its proper divisors (448575982).

897151958 is a wasteful number, since it uses less digits than its factorization.

897151958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448575981.

The product of its digits is 907200, while the sum is 53.

The square root of 897151958 is about 29952.4950212833. The cubic root of 897151958 is about 964.4698809196.

The spelling of 897151958 in words is "eight hundred ninety-seven million, one hundred fifty-one thousand, nine hundred fifty-eight".