980779653 has 12 divisors (see below), whose sum is σ = 1619064928. Its totient is φ = 560445480.

The previous prime is 980779637. The next prime is 980779661. The reversal of 980779653 is 356977089.

It is not a de Polignac number, because 980779653 - 2⁴ = 980779637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 980779653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980779603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7783903 + ... + 7784028.

Almost surely, 2^980779653 is an apocalyptic number.

It is an amenable number.

980779653 is a deficient number, since it is larger than the sum of its proper divisors (638285275).

980779653 is a wasteful number, since it uses less digits than its factorization.

980779653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567944 (or 15567941 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 980779653 is about 31317.4017600439. The cubic root of 980779653 is about 993.5517268131.

The spelling of 980779653 in words is "nine hundred eighty million, seven hundred seventy-nine thousand, six hundred fifty-three".