980491747 has 2 divisors, whose sum is σ = 980491748. Its totient is φ = 980491746.

The previous prime is 980491723. The next prime is 980491763. The reversal of 980491747 is 747194089.

It is a strong prime.

It is an emirp because it is prime and its reverse (747194089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 980491747 - 2⁷ = 980491619 is a prime.

It is a super-2 number, since 2×980491747² = 1922728131870224018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 980491747.

It is not a weakly prime, because it can be changed into another prime (980491717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490245873 + 490245874.

It is an arithmetic number, because the mean of its divisors is an integer number (490245874).

Almost surely, 2^980491747 is an apocalyptic number.

980491747 is a deficient number, since it is larger than the sum of its proper divisors (1).

980491747 is an equidigital number, since it uses as much as digits as its factorization.

980491747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 980491747 is about 31312.8048408315. The cubic root of 980491747 is about 993.4544988928.

The spelling of 980491747 in words is "nine hundred eighty million, four hundred ninety-one thousand, seven hundred forty-seven".