786406471 has 2 divisors, whose sum is σ = 786406472. Its totient is φ = 786406470.

The previous prime is 786406469. The next prime is 786406487. The reversal of 786406471 is 174604687.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 786406471 - 2¹ = 786406469 is a prime.

It is a super-3 number, since 3×786406471³ (a number of 28 digits) contains 333 as substring.

Together with 786406469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (786406771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393203235 + 393203236.

It is an arithmetic number, because the mean of its divisors is an integer number (393203236).

Almost surely, 2^786406471 is an apocalyptic number.

786406471 is a deficient number, since it is larger than the sum of its proper divisors (1).

786406471 is an equidigital number, since it uses as much as digits as its factorization.

786406471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 786406471 is about 28042.9397710012. The cubic root of 786406471 is about 923.0297370444.

The spelling of 786406471 in words is "seven hundred eighty-six million, four hundred six thousand, four hundred seventy-one".