788531 has 2 divisors, whose sum is σ = 788532. Its totient is φ = 788530.

The previous prime is 788527. The next prime is 788537. The reversal of 788531 is 135887.

It is a weak prime.

It is an emirp because it is prime and its reverse (135887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 788531 - 2² = 788527 is a prime.

It is a super-2 number, since 2×788531² = 1243562275922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (788537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394265 + 394266.

It is an arithmetic number, because the mean of its divisors is an integer number (394266).

2⁷⁸⁸⁵³¹ is an apocalyptic number.

788531 is a deficient number, since it is larger than the sum of its proper divisors (1).

788531 is an equidigital number, since it uses as much as digits as its factorization.

788531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 788531 is about 887.9926801500. The cubic root of 788531 is about 92.3860198235.

The spelling of 788531 in words is "seven hundred eighty-eight thousand, five hundred thirty-one".