86945783 has 2 divisors, whose sum is σ = 86945784. Its totient is φ = 86945782.

The previous prime is 86945759. The next prime is 86945813. The reversal of 86945783 is 38754968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86945783 - 2²⁶ = 19836919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86945713) 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, 43472891 + 43472892.

It is an arithmetic number, because the mean of its divisors is an integer number (43472892).

Almost surely, 2^86945783 is an apocalyptic number.

86945783 is a deficient number, since it is larger than the sum of its proper divisors (1).

86945783 is an equidigital number, since it uses as much as digits as its factorization.

86945783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 86945783 is about 9324.4722638871. The cubic root of 86945783 is about 443.0126977899.

The spelling of 86945783 in words is "eighty-six million, nine hundred forty-five thousand, seven hundred eighty-three".