646487006 has 8 divisors (see below), whose sum is σ = 1057887864. Its totient is φ = 293857720.

The previous prime is 646486993. The next prime is 646487041. The reversal of 646487006 is 600784646.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14692865 + ... + 14692908.

It is an arithmetic number, because the mean of its divisors is an integer number (132235983).

Almost surely, 2^646487006 is an apocalyptic number.

646487006 is a deficient number, since it is larger than the sum of its proper divisors (411400858).

646487006 is a wasteful number, since it uses less digits than its factorization.

646487006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29385786.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 646487006 is about 25426.1087467194. The cubic root of 646487006 is about 864.6757250644.

The spelling of 646487006 in words is "six hundred forty-six million, four hundred eighty-seven thousand, six".