708987 has 4 divisors (see below), whose sum is σ = 945320. Its totient is φ = 472656.

The previous prime is 708979. The next prime is 708989. The reversal of 708987 is 789807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789807 = 3 ⋅263269.

It is not a de Polignac number, because 708987 - 2³ = 708979 is a prime.

It is a D-number.

It is a Duffinian number.

708987 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 708987.

It is not an unprimeable number, because it can be changed into a prime (708989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118162 + ... + 118167.

It is an arithmetic number, because the mean of its divisors is an integer number (236330).

2⁷⁰⁸⁹⁸⁷ is an apocalyptic number.

708987 is a deficient number, since it is larger than the sum of its proper divisors (236333).

708987 is a wasteful number, since it uses less digits than its factorization.

708987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236332.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 708987 is about 842.0136578465. The cubic root of 708987 is about 89.1687661698.

The spelling of 708987 in words is "seven hundred eight thousand, nine hundred eighty-seven".