714639 has 4 divisors (see below), whose sum is σ = 952856. Its totient is φ = 476424.

The previous prime is 714619. The next prime is 714673. The reversal of 714639 is 936417.

714639 = T₃₉₄ + T₃₉₅ + ... + T₄₀₂.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-714639 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 714639.

It is not an unprimeable number, because it can be changed into a prime (714619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119104 + ... + 119109.

It is an arithmetic number, because the mean of its divisors is an integer number (238214).

2⁷¹⁴⁶³⁹ is an apocalyptic number.

714639 is a deficient number, since it is larger than the sum of its proper divisors (238217).

714639 is a wasteful number, since it uses less digits than its factorization.

714639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238216.

The product of its digits is 4536, while the sum is 30.

The square root of 714639 is about 845.3632355384. The cubic root of 714639 is about 89.4050885702.

The spelling of 714639 in words is "seven hundred fourteen thousand, six hundred thirty-nine".