897609546 has 32 divisors (see below), whose sum is σ = 2081416320. Its totient is φ = 286193952.

The previous prime is 897609527. The next prime is 897609547. The reversal of 897609546 is 645906798.

897609546 is a `hidden beast` number, since 8 + 97 + 6 + 0 + 9 + 546 = 666.

It is a super-2 number, since 2×897609546² = 1611405794140652232, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 897609492 and 897609501.

It is not an unprimeable number, because it can be changed into a prime (897609547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360115 + ... + 362598.

It is an arithmetic number, because the mean of its divisors is an integer number (65044260).

Almost surely, 2^897609546 is an apocalyptic number.

897609546 is an abundant number, since it is smaller than the sum of its proper divisors (1183806774).

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

897609546 is a wasteful number, since it uses less digits than its factorization.

897609546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722747 (or 722741 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 897609546 is about 29960.1326098534. The cubic root of 897609546 is about 964.6338274426.

The spelling of 897609546 in words is "eight hundred ninety-seven million, six hundred nine thousand, five hundred forty-six".