980615761 has 2 divisors, whose sum is σ = 980615762. Its totient is φ = 980615760.

The previous prime is 980615759. The next prime is 980615771. The reversal of 980615761 is 167516089.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721244736 + 259371025 = 26856^2 + 16105^2 .

It is a cyclic number.

It is not a de Polignac number, because 980615761 - 2¹ = 980615759 is a prime.

Together with 980615759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (980615771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490307880 + 490307881.

It is an arithmetic number, because the mean of its divisors is an integer number (490307881).

Almost surely, 2^980615761 is an apocalyptic number.

It is an amenable number.

980615761 is a deficient number, since it is larger than the sum of its proper divisors (1).

980615761 is an equidigital number, since it uses as much as digits as its factorization.

980615761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 980615761 is about 31314.7850224139. The cubic root of 980615761 is about 993.4963816429.

The spelling of 980615761 in words is "nine hundred eighty million, six hundred fifteen thousand, seven hundred sixty-one".