894990553 has 4 divisors (see below), whose sum is σ = 923861248. Its totient is φ = 866119860.

The previous prime is 894990541. The next prime is 894990637. The reversal of 894990553 is 355099498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-894990553 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 894990553.

It is not an unprimeable number, because it can be changed into a prime (894990533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14435301 + ... + 14435362.

It is an arithmetic number, because the mean of its divisors is an integer number (230965312).

Almost surely, 2^894990553 is an apocalyptic number.

It is an amenable number.

894990553 is a deficient number, since it is larger than the sum of its proper divisors (28870695).

894990553 is a wasteful number, since it uses less digits than its factorization.

894990553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28870694.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The square root of 894990553 is about 29916.3927136946. The cubic root of 894990553 is about 963.6947293157.

The spelling of 894990553 in words is "eight hundred ninety-four million, nine hundred ninety thousand, five hundred fifty-three".