854981633 has 8 divisors (see below), whose sum is σ = 939419040. Its totient is φ = 771662880.

The previous prime is 854981609. The next prime is 854981639. The reversal of 854981633 is 336189458.

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

It is a cyclic number.

It is not a de Polignac number, because 854981633 - 2²⁰ = 853933057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854981639) 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, 278060 + ... + 281117.

It is an arithmetic number, because the mean of its divisors is an integer number (117427380).

Almost surely, 2^854981633 is an apocalyptic number.

It is an amenable number.

854981633 is a deficient number, since it is larger than the sum of its proper divisors (84437407).

854981633 is a wasteful number, since it uses less digits than its factorization.

854981633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559327.

The product of its digits is 622080, while the sum is 47.

The square root of 854981633 is about 29240.0689636670. The cubic root of 854981633 is about 949.1151994487.

The spelling of 854981633 in words is "eight hundred fifty-four million, nine hundred eighty-one thousand, six hundred thirty-three".