709375 has 12 divisors (see below), whose sum is σ = 890568. Its totient is φ = 565000.

The previous prime is 709351. The next prime is 709381. The reversal of 709375 is 573907.

It is a de Polignac number, because none of the positive numbers 2^k-709375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3012 + ... + 3238.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2⁷⁰⁹³⁷⁵ is an apocalyptic number.

709375 is a deficient number, since it is larger than the sum of its proper divisors (181193).

709375 is an frugal number, since it uses more digits than its factorization.

709375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 709375 is about 842.2440263962. The cubic root of 709375 is about 89.1850293603.

The spelling of 709375 in words is "seven hundred nine thousand, three hundred seventy-five".