647621146 has 8 divisors (see below), whose sum is σ = 971756064. Its totient is φ = 323702460.

The previous prime is 647621119. The next prime is 647621153. The reversal of 647621146 is 641126746.

647621146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 46350 + ... + 58681.

It is an arithmetic number, because the mean of its divisors is an integer number (121469508).

Almost surely, 2^647621146 is an apocalyptic number.

647621146 is a deficient number, since it is larger than the sum of its proper divisors (324134918).

647621146 is a wasteful number, since it uses less digits than its factorization.

647621146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108116.

The product of its digits is 48384, while the sum is 37.

The square root of 647621146 is about 25448.4016393957. The cubic root of 647621146 is about 865.1810667097.

The spelling of 647621146 in words is "six hundred forty-seven million, six hundred twenty-one thousand, one hundred forty-six".