897512506 has 8 divisors (see below), whose sum is σ = 1468656864. Its totient is φ = 407960220.

The previous prime is 897512479. The next prime is 897512507. The reversal of 897512506 is 605215798.

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

It is not an unprimeable number, because it can be changed into a prime (897512507) by changing a digit.

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, 20397990 + ... + 20398033.

It is an arithmetic number, because the mean of its divisors is an integer number (183582108).

Almost surely, 2^897512506 is an apocalyptic number.

897512506 is a deficient number, since it is larger than the sum of its proper divisors (571144358).

897512506 is a wasteful number, since it uses less digits than its factorization.

897512506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40796036.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 897512506 is about 29958.5130805920. The cubic root of 897512506 is about 964.5990642056.

The spelling of 897512506 in words is "eight hundred ninety-seven million, five hundred twelve thousand, five hundred six".