561676834 has 4 divisors (see below), whose sum is σ = 842515254. Its totient is φ = 280838416.

The previous prime is 561676823. The next prime is 561676849. The reversal of 561676834 is 438676165.

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

It can be written as a sum of positive squares in only one way, i.e., 512886609 + 48790225 = 22647^2 + 6985^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140419207 + ... + 140419210.

Almost surely, 2^561676834 is an apocalyptic number.

561676834 is a deficient number, since it is larger than the sum of its proper divisors (280838420).

561676834 is a wasteful number, since it uses less digits than its factorization.

561676834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280838419.

The product of its digits is 725760, while the sum is 46.

The square root of 561676834 is about 23699.7222346592. The cubic root of 561676834 is about 825.0789438996.

It can be divided in two parts, 56167 and 6834, that added together give a square (63001 = 251²).

The spelling of 561676834 in words is "five hundred sixty-one million, six hundred seventy-six thousand, eight hundred thirty-four".