709980 has 24 divisors (see below), whose sum is σ = 1988112. Its totient is φ = 189312.

The previous prime is 709967. The next prime is 709981. The reversal of 709980 is 89907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5857 + ... + 5976.

It is an arithmetic number, because the mean of its divisors is an integer number (82838).

2⁷⁰⁹⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

709980 is an abundant number, since it is smaller than the sum of its proper divisors (1278132).

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

709980 is a wasteful number, since it uses less digits than its factorization.

709980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845 (or 11843 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 709980 is about 842.6031094175. The cubic root of 709980 is about 89.2103763727.

The spelling of 709980 in words is "seven hundred nine thousand, nine hundred eighty".