707985 has 12 divisors (see below), whose sum is σ = 1227252. Its totient is φ = 377568.

The previous prime is 707983. The next prime is 708007. The reversal of 707985 is 589707.

707985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154449 + 553536 = 393^2 + 744^2 .

It is not a de Polignac number, because 707985 - 2¹ = 707983 is a prime.

It is a Curzon number.

707985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (707981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7822 + ... + 7911.

It is an arithmetic number, because the mean of its divisors is an integer number (102271).

2⁷⁰⁷⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

707985 is a deficient number, since it is larger than the sum of its proper divisors (519267).

707985 is a wasteful number, since it uses less digits than its factorization.

707985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15744 (or 15741 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 707985 is about 841.4184452459. The cubic root of 707985 is about 89.1267394342.

The spelling of 707985 in words is "seven hundred seven thousand, nine hundred eighty-five".