713840 has 20 divisors (see below), whose sum is σ = 1659864. Its totient is φ = 285504.

The previous prime is 713833. The next prime is 713861. The reversal of 713840 is 48317.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4382 + ... + 4541.

2⁷¹³⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

713840 is an abundant number, since it is smaller than the sum of its proper divisors (946024).

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

713840 is a wasteful number, since it uses less digits than its factorization.

713840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936 (or 8930 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 713840 is about 844.8905254529. The cubic root of 713840 is about 89.3717564474.

The spelling of 713840 in words is "seven hundred thirteen thousand, eight hundred forty".