707090 has 8 divisors (see below), whose sum is σ = 1272780. Its totient is φ = 282832.

The previous prime is 707071. The next prime is 707099. The reversal of 707090 is 90707.

It can be written as a sum of positive squares in 2 ways, for example, as 667489 + 39601 = 817^2 + 199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (707099) by changing a digit.

707090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35345 + ... + 35364.

2⁷⁰⁷⁰⁹⁰ is an apocalyptic number.

707090 is a deficient number, since it is larger than the sum of its proper divisors (565690).

707090 is a wasteful number, since it uses less digits than its factorization.

707090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70716.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 707090 is about 840.8864370413. The cubic root of 707090 is about 89.0891670428.

Adding to 707090 its reverse (90707), we get a palindrome (797797).

The spelling of 707090 in words is "seven hundred seven thousand, ninety".