787939 has 2 divisors, whose sum is σ = 787940. Its totient is φ = 787938.

The previous prime is 787907. The next prime is 787973. The reversal of 787939 is 939787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 787939 - 2⁵ = 787907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 787895 and 787904.

It is not a weakly prime, because it can be changed into another prime (787999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393969 + 393970.

It is an arithmetic number, because the mean of its divisors is an integer number (393970).

2⁷⁸⁷⁹³⁹ is an apocalyptic number.

787939 is a deficient number, since it is larger than the sum of its proper divisors (1).

787939 is an equidigital number, since it uses as much as digits as its factorization.

787939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 787939 is about 887.6592814814. The cubic root of 787939 is about 92.3628940295.

The spelling of 787939 in words is "seven hundred eighty-seven thousand, nine hundred thirty-nine".