647214 has 16 divisors (see below), whose sum is σ = 1302480. Its totient is φ = 214400.

The previous prime is 647209. The next prime is 647219. The reversal of 647214 is 412746.

It is an interprime number because it is at equal distance from previous prime (647209) and next prime (647219).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 1814.

It is an arithmetic number, because the mean of its divisors is an integer number (81405).

2⁶⁴⁷²¹⁴ is an apocalyptic number.

647214 is an abundant number, since it is smaller than the sum of its proper divisors (655266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647214 is a wasteful number, since it uses less digits than its factorization.

647214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its digits is 1344, while the sum is 24.

The square root of 647214 is about 804.4961155904. The cubic root of 647214 is about 86.4999721563.

It can be divided in two parts, 647 and 214, that added together give a triangular number (861 = T₄₁).

The spelling of 647214 in words is "six hundred forty-seven thousand, two hundred fourteen".