897312650 has 48 divisors (see below), whose sum is σ = 1800447264. Its totient is φ = 330751680.

The previous prime is 897312629. The next prime is 897312653. The reversal of 897312650 is 56213798.

It is a junction number, because it is equal to n+sod(n) for n = 897312598 and 897312607.

It is not an unprimeable number, because it can be changed into a prime (897312653) 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 23 ways as a sum of consecutive naturals, for example, 755357 + ... + 756543.

It is an arithmetic number, because the mean of its divisors is an integer number (37509318).

Almost surely, 2^897312650 is an apocalyptic number.

897312650 is an abundant number, since it is smaller than the sum of its proper divisors (903134614).

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

897312650 is a wasteful number, since it uses less digits than its factorization.

897312650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375 (or 2370 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 897312650 is about 29955.1773488324. The cubic root of 897312650 is about 964.5274606642.

The spelling of 897312650 in words is "eight hundred ninety-seven million, three hundred twelve thousand, six hundred fifty".