707987 has 4 divisors (see below), whose sum is σ = 809136. Its totient is φ = 606840.

The previous prime is 707983. The next prime is 708007. The reversal of 707987 is 789707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789707 = 607 ⋅1301.

It is a cyclic number.

It is not a de Polignac number, because 707987 - 2² = 707983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 707987.

It is not an unprimeable number, because it can be changed into a prime (707981) 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 3 ways as a sum of consecutive naturals, for example, 50564 + ... + 50577.

It is an arithmetic number, because the mean of its divisors is an integer number (202284).

2⁷⁰⁷⁹⁸⁷ is an apocalyptic number.

707987 is a deficient number, since it is larger than the sum of its proper divisors (101149).

707987 is a wasteful number, since it uses less digits than its factorization.

707987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101148.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 707987 is about 841.4196337144. The cubic root of 707987 is about 89.1268233594.

The spelling of 707987 in words is "seven hundred seven thousand, nine hundred eighty-seven".