789000987 has 16 divisors (see below), whose sum is σ = 1090547712. Its totient is φ = 506993760.

The previous prime is 789000977. The next prime is 789000997.

789000987 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (789000977) and next prime (789000997).

It is not a de Polignac number, because 789000987 - 2¹¹ = 788998939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (789000977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21339 + ... + 45092.

It is an arithmetic number, because the mean of its divisors is an integer number (68159232).

Almost surely, 2^789000987 is an apocalyptic number.

789000987 is a deficient number, since it is larger than the sum of its proper divisors (301546725).

789000987 is a wasteful number, since it uses less digits than its factorization.

789000987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66578.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 789000987 is about 28089.1613794360. The cubic root of 789000987 is about 924.0437108030.

It can be divided in two parts, 789000 and 987, that added together give a palindrome (789987).

The spelling of 789000987 in words is "seven hundred eighty-nine million, nine hundred eighty-seven", and thus it is an aban number.