561706347 has 8 divisors (see below), whose sum is σ = 759490560. Its totient is φ = 369196520.

The previous prime is 561706319. The next prime is 561706363. The reversal of 561706347 is 743607165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561706347 - 2⁶ = 561706283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561706247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318347 + ... + 1318772.

It is an arithmetic number, because the mean of its divisors is an integer number (94936320).

Almost surely, 2^561706347 is an apocalyptic number.

561706347 is a deficient number, since it is larger than the sum of its proper divisors (197784213).

561706347 is a wasteful number, since it uses less digits than its factorization.

561706347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637193.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 561706347 is about 23700.3448709085. The cubic root of 561706347 is about 825.0933947528.

The spelling of 561706347 in words is "five hundred sixty-one million, seven hundred six thousand, three hundred forty-seven".