646714 has 16 divisors (see below), whose sum is σ = 1073088. Its totient is φ = 290752.

The previous prime is 646687. The next prime is 646721. The reversal of 646714 is 417646.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 1195.

It is an arithmetic number, because the mean of its divisors is an integer number (67068).

2⁶⁴⁶⁷¹⁴ is an apocalyptic number.

646714 is a deficient number, since it is larger than the sum of its proper divisors (426374).

646714 is a wasteful number, since it uses less digits than its factorization.

646714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 4032, while the sum is 28.

The square root of 646714 is about 804.1853020293. The cubic root of 646714 is about 86.4776914638.

The spelling of 646714 in words is "six hundred forty-six thousand, seven hundred fourteen".