894492561 has 8 divisors (see below), whose sum is σ = 1193577280. Its totient is φ = 595868112.

The previous prime is 894492551. The next prime is 894492629. The reversal of 894492561 is 165294498.

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

It is a de Polignac number, because none of the positive numbers 2^k-894492561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 894492561.

It is not an unprimeable number, because it can be changed into a prime (894492541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110506 + ... + 118323.

It is an arithmetic number, because the mean of its divisors is an integer number (149197160).

Almost surely, 2^894492561 is an apocalyptic number.

It is an amenable number.

894492561 is a deficient number, since it is larger than the sum of its proper divisors (299084719).

894492561 is a wasteful number, since it uses less digits than its factorization.

894492561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230135.

The product of its digits is 622080, while the sum is 48.

The square root of 894492561 is about 29908.0684933013. The cubic root of 894492561 is about 963.5159559932.

The spelling of 894492561 in words is "eight hundred ninety-four million, four hundred ninety-two thousand, five hundred sixty-one".