959321491 has 2 divisors, whose sum is σ = 959321492. Its totient is φ = 959321490.

The previous prime is 959321483. The next prime is 959321497. The reversal of 959321491 is 194123959.

959321491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 959321491 - 2³ = 959321483 is a prime.

It is not a weakly prime, because it can be changed into another prime (959321497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479660745 + 479660746.

It is an arithmetic number, because the mean of its divisors is an integer number (479660746).

Almost surely, 2^959321491 is an apocalyptic number.

959321491 is a deficient number, since it is larger than the sum of its proper divisors (1).

959321491 is an equidigital number, since it uses as much as digits as its factorization.

959321491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 959321491 is about 30972.9154423667. The cubic root of 959321491 is about 986.2523656388.

The spelling of 959321491 in words is "nine hundred fifty-nine million, three hundred twenty-one thousand, four hundred ninety-one".