647670214 has 32 divisors (see below), whose sum is σ = 1049748480. Its totient is φ = 298704672.

The previous prime is 647670181. The next prime is 647670227. The reversal of 647670214 is 412076746.

647670214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×647670214² = 838953412205611592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991512 + ... + 992164.

It is an arithmetic number, because the mean of its divisors is an integer number (32804640).

Almost surely, 2^647670214 is an apocalyptic number.

647670214 is a deficient number, since it is larger than the sum of its proper divisors (402078266).

647670214 is a wasteful number, since it uses less digits than its factorization.

647670214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 647670214 is about 25449.3656895413. The cubic root of 647670214 is about 865.2029167438.

The spelling of 647670214 in words is "six hundred forty-seven million, six hundred seventy thousand, two hundred fourteen".