980491 has 2 divisors, whose sum is σ = 980492. Its totient is φ = 980490.

The previous prime is 980489. The next prime is 980503. The reversal of 980491 is 194089.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 980491 - 2¹ = 980489 is a prime.

It is a super-2 number, since 2×980491² = 1922725202162, which contains 22 as substring.

Together with 980489, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (980401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490245 + 490246.

It is an arithmetic number, because the mean of its divisors is an integer number (490246).

2⁹⁸⁰⁴⁹¹ is an apocalyptic number.

980491 is a deficient number, since it is larger than the sum of its proper divisors (1).

980491 is an equidigital number, since it uses as much as digits as its factorization.

980491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 980491 is about 990.1974550563. The cubic root of 980491 is about 99.3454246601.

The spelling of 980491 in words is "nine hundred eighty thousand, four hundred ninety-one".