561412447 has 4 divisors (see below), whose sum is σ = 561630240. Its totient is φ = 561194656.

The previous prime is 561412393. The next prime is 561412459. The reversal of 561412447 is 744214165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561412447 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 (561412477) 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, 104983 + ... + 110200.

It is an arithmetic number, because the mean of its divisors is an integer number (140407560).

Almost surely, 2^561412447 is an apocalyptic number.

561412447 is a deficient number, since it is larger than the sum of its proper divisors (217793).

561412447 is a wasteful number, since it uses less digits than its factorization.

561412447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217792.

The product of its digits is 26880, while the sum is 34.

The square root of 561412447 is about 23694.1437279341. The cubic root of 561412447 is about 824.9494658976.

The spelling of 561412447 in words is "five hundred sixty-one million, four hundred twelve thousand, four hundred forty-seven".