639114 has 16 divisors (see below), whose sum is σ = 1460928. Its totient is φ = 182592.

The previous prime is 639091. The next prime is 639137. The reversal of 639114 is 411936.

It is an interprime number because it is at equal distance from previous prime (639091) and next prime (639137).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7567 + ... + 7650.

It is an arithmetic number, because the mean of its divisors is an integer number (91308).

2⁶³⁹¹¹⁴ is an apocalyptic number.

639114 is an abundant number, since it is smaller than the sum of its proper divisors (821814).

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

639114 is a wasteful number, since it uses less digits than its factorization.

639114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15229.

The product of its digits is 648, while the sum is 24.

The square root of 639114 is about 799.4460582178. The cubic root of 639114 is about 86.1376019626.

The spelling of 639114 in words is "six hundred thirty-nine thousand, one hundred fourteen".