788987 has 4 divisors (see below), whose sum is σ = 835416. Its totient is φ = 742560.

The previous prime is 788971. The next prime is 788993. The reversal of 788987 is 789887.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 788987 - 2⁴ = 788971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (788927) 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, 23189 + ... + 23222.

It is an arithmetic number, because the mean of its divisors is an integer number (208854).

2⁷⁸⁸⁹⁸⁷ is an apocalyptic number.

788987 is a deficient number, since it is larger than the sum of its proper divisors (46429).

788987 is a wasteful number, since it uses less digits than its factorization.

788987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46428.

The product of its digits is 225792, while the sum is 47.

The square root of 788987 is about 888.2494019137. The cubic root of 788987 is about 92.4038250448.

Subtracting 788987 from its reverse (789887), we obtain a square (900 = 30²).

The spelling of 788987 in words is "seven hundred eighty-eight thousand, nine hundred eighty-seven".