897618330 has 384 divisors, whose sum is σ = 3019161600. Its totient is φ = 180403200.

The previous prime is 897618307. The next prime is 897618331. The reversal of 897618330 is 33816798.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (897618331) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15213841 + ... + 15213899.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^897618330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897618330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509580800).

897618330 is an abundant number, since it is smaller than the sum of its proper divisors (2121543270).

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

897618330 is a wasteful number, since it uses less digits than its factorization.

897618330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 897618330 is about 29960.2792043065. The cubic root of 897618330 is about 964.6369740654.

The spelling of 897618330 in words is "eight hundred ninety-seven million, six hundred eighteen thousand, three hundred thirty".