897861294 has 64 divisors (see below), whose sum is σ = 2199214080. Its totient is φ = 269256960.

The previous prime is 897861269. The next prime is 897861299. The reversal of 897861294 is 492168798.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 897861294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897861299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49827 + ... + 65409.

It is an arithmetic number, because the mean of its divisors is an integer number (34362720).

Almost surely, 2^897861294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897861294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099607040).

897861294 is an abundant number, since it is smaller than the sum of its proper divisors (1301352786).

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

897861294 is a wasteful number, since it uses less digits than its factorization.

897861294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15702 (or 15696 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 897861294 is about 29964.3336985824. Note that the first 3 decimals coincide. The cubic root of 897861294 is about 964.7240009998.

The spelling of 897861294 in words is "eight hundred ninety-seven million, eight hundred sixty-one thousand, two hundred ninety-four".