647774012 has 12 divisors (see below), whose sum is σ = 1134029400. Its totient is φ = 323765616.

The previous prime is 647773999. The next prime is 647774053. The reversal of 647774012 is 210477746.

It is a super-2 number, since 2×647774012² = 839222341245152288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17762 + ... + 40137.

It is an arithmetic number, because the mean of its divisors is an integer number (94502450).

Almost surely, 2^647774012 is an apocalyptic number.

It is an amenable number.

647774012 is a deficient number, since it is larger than the sum of its proper divisors (486255388).

647774012 is a wasteful number, since it uses less digits than its factorization.

647774012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60700 (or 60698 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 647774012 is about 25451.4049121065. The cubic root of 647774012 is about 865.2491344707.

The spelling of 647774012 in words is "six hundred forty-seven million, seven hundred seventy-four thousand, twelve".