787427 has 2 divisors, whose sum is σ = 787428. Its totient is φ = 787426.

The previous prime is 787361. The next prime is 787429. The reversal of 787427 is 724787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 787427 - 2¹⁶ = 721891 is a prime.

Together with 787429, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (787429) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393713 + 393714.

It is an arithmetic number, because the mean of its divisors is an integer number (393714).

2⁷⁸⁷⁴²⁷ is an apocalyptic number.

787427 is a deficient number, since it is larger than the sum of its proper divisors (1).

787427 is an equidigital number, since it uses as much as digits as its factorization.

787427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21952, while the sum is 35.

The square root of 787427 is about 887.3708356713. The cubic root of 787427 is about 92.3428839998.

The spelling of 787427 in words is "seven hundred eighty-seven thousand, four hundred twenty-seven".