980765775 has 36 divisors (see below), whose sum is σ = 1916361720. Its totient is φ = 475521600.

The previous prime is 980765677. The next prime is 980765777. The reversal of 980765775 is 577567089.

It is not a de Polignac number, because 980765775 - 2⁸ = 980765519 is a prime.

It is a super-2 number, since 2×980765775² = 1923803010822701250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980765777) 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 in 35 ways as a sum of consecutive naturals, for example, 195660 + ... + 200609.

It is an arithmetic number, because the mean of its divisors is an integer number (53232270).

Almost surely, 2^980765775 is an apocalyptic number.

980765775 is a deficient number, since it is larger than the sum of its proper divisors (935595945).

980765775 is a wasteful number, since it uses less digits than its factorization.

980765775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396296 (or 396288 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 54.

The square root of 980765775 is about 31317.1801891550. The cubic root of 980765775 is about 993.5470405495.

The spelling of 980765775 in words is "nine hundred eighty million, seven hundred sixty-five thousand, seven hundred seventy-five".