647227701 has 12 divisors (see below), whose sum is σ = 956626528. Its totient is φ = 421450344.

The previous prime is 647227697. The next prime is 647227729. The reversal of 647227701 is 107722746.

It is a happy number.

647227701 is a `hidden beast` number, since 647 + 2 + 2 + 7 + 7 + 0 + 1 = 666.

It is not a de Polignac number, because 647227701 - 2² = 647227697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647227781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835825 + ... + 836598.

Almost surely, 2^647227701 is an apocalyptic number.

It is an amenable number.

647227701 is a deficient number, since it is larger than the sum of its proper divisors (309398827).

647227701 is a wasteful number, since it uses less digits than its factorization.

647227701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672472 (or 1672469 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 647227701 is about 25440.6702152282. The cubic root of 647227701 is about 865.0058253030.

The spelling of 647227701 in words is "six hundred forty-seven million, two hundred twenty-seven thousand, seven hundred one".