561084477 has 4 divisors (see below), whose sum is σ = 748112640. Its totient is φ = 374056316.

The previous prime is 561084451. The next prime is 561084479. The reversal of 561084477 is 774480165.

561084477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 561084477 - 2²⁴ = 544307261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561084479) 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, 93514077 + ... + 93514082.

It is an arithmetic number, because the mean of its divisors is an integer number (187028160).

Almost surely, 2^561084477 is an apocalyptic number.

It is an amenable number.

561084477 is a deficient number, since it is larger than the sum of its proper divisors (187028163).

561084477 is a wasteful number, since it uses less digits than its factorization.

561084477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187028162.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 561084477 is about 23687.2218083928. The cubic root of 561084477 is about 824.7887929494.

The spelling of 561084477 in words is "five hundred sixty-one million, eighty-four thousand, four hundred seventy-seven".