1721560006 has 8 divisors (see below), whose sum is σ = 2599671600. Its totient is φ = 855002808.

The previous prime is 1721560003. The next prime is 1721560007. The reversal of 1721560006 is 6000651271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1721560003) 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, 2888226 + ... + 2888821.

It is an arithmetic number, because the mean of its divisors is an integer number (324958950).

Almost surely, 2^1721560006 is an apocalyptic number.

1721560006 is a deficient number, since it is larger than the sum of its proper divisors (878111594).

1721560006 is a wasteful number, since it uses less digits than its factorization.

1721560006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777198.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1721560006 is about 41491.6859864720. The cubic root of 1721560006 is about 1198.5074048844.

The spelling of 1721560006 in words is "one billion, seven hundred twenty-one million, five hundred sixty thousand, six".