320476087 has 2 divisors, whose sum is σ = 320476088. Its totient is φ = 320476086.

The previous prime is 320476073. The next prime is 320476133. The reversal of 320476087 is 780674023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320476087 - 2¹⁹ = 319951799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320476067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160238043 + 160238044.

It is an arithmetic number, because the mean of its divisors is an integer number (160238044).

Almost surely, 2^320476087 is an apocalyptic number.

320476087 is a deficient number, since it is larger than the sum of its proper divisors (1).

320476087 is an equidigital number, since it uses as much as digits as its factorization.

320476087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 320476087 is about 17901.8459104082. The cubic root of 320476087 is about 684.3294178046.

The spelling of 320476087 in words is "three hundred twenty million, four hundred seventy-six thousand, eighty-seven".