983491 has 2 divisors, whose sum is σ = 983492. Its totient is φ = 983490.

The previous prime is 983461. The next prime is 983513. The reversal of 983491 is 194389.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 983491 - 2⁷ = 983363 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (983431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491745 + 491746.

It is an arithmetic number, because the mean of its divisors is an integer number (491746).

2⁹⁸³⁴⁹¹ is an apocalyptic number.

983491 is a deficient number, since it is larger than the sum of its proper divisors (1).

983491 is an equidigital number, since it uses as much as digits as its factorization.

983491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 983491 is about 991.7111474618. The cubic root of 983491 is about 99.4466436151.

It can be divided in two parts, 983 and 491, that multiplied together give a triangular number (482653 = T₉₈₂).

The spelling of 983491 in words is "nine hundred eighty-three thousand, four hundred ninety-one".