561733343 has 4 divisors (see below), whose sum is σ = 562812048. Its totient is φ = 560654640.

The previous prime is 561733307. The next prime is 561733357. The reversal of 561733343 is 343337165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561733343 - 2²² = 557539039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561733373) 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, 538571 + ... + 539612.

It is an arithmetic number, because the mean of its divisors is an integer number (140703012).

Almost surely, 2^561733343 is an apocalyptic number.

561733343 is a deficient number, since it is larger than the sum of its proper divisors (1078705).

561733343 is a wasteful number, since it uses less digits than its factorization.

561733343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078704.

The product of its digits is 68040, while the sum is 35.

The square root of 561733343 is about 23700.9143916432. The cubic root of 561733343 is about 825.1066127296.

The spelling of 561733343 in words is "five hundred sixty-one million, seven hundred thirty-three thousand, three hundred forty-three".