980485779 has 48 divisors (see below), whose sum is σ = 1624126464. Its totient is φ = 515174400.

The previous prime is 980485717. The next prime is 980485783. The reversal of 980485779 is 977584089.

It is not a de Polignac number, because 980485779 - 2²⁰ = 979437203 is a prime.

It is a super-2 number, since 2×980485779² = 1922704725642473682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (980485579) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1529299 + ... + 1529939.

It is an arithmetic number, because the mean of its divisors is an integer number (33835968).

Almost surely, 2^980485779 is an apocalyptic number.

980485779 is a deficient number, since it is larger than the sum of its proper divisors (643640685).

980485779 is a wasteful number, since it uses less digits than its factorization.

980485779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 980485779 is about 31312.7095442090. The cubic root of 980485779 is about 993.4524832551.

The spelling of 980485779 in words is "nine hundred eighty million, four hundred eighty-five thousand, seven hundred seventy-nine".