833988493 has 4 divisors (see below), whose sum is σ = 898141468. Its totient is φ = 769835520.

The previous prime is 833988479. The next prime is 833988521. The reversal of 833988493 is 394889338.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394889338 = 2 ⋅197444669.

It can be written as a sum of positive squares in 2 ways, for example, as 290259369 + 543729124 = 17037^2 + 23318^2 .

It is a cyclic number.

It is not a de Polignac number, because 833988493 - 2¹⁷ = 833857421 is a prime.

It is a super-2 number, since 2×833988493² = 1391073612912822098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (833988433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32076468 + ... + 32076493.

It is an arithmetic number, because the mean of its divisors is an integer number (224535367).

Almost surely, 2^833988493 is an apocalyptic number.

It is an amenable number.

833988493 is a deficient number, since it is larger than the sum of its proper divisors (64152975).

833988493 is a wasteful number, since it uses less digits than its factorization.

833988493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64152974.

The product of its digits is 4478976, while the sum is 55.

The square root of 833988493 is about 28878.8589282887. The cubic root of 833988493 is about 941.2825758217.

The spelling of 833988493 in words is "eight hundred thirty-three million, nine hundred eighty-eight thousand, four hundred ninety-three".