980789653 has 4 divisors (see below), whose sum is σ = 1038483180. Its totient is φ = 923096128.

The previous prime is 980789651. The next prime is 980789683. The reversal of 980789653 is 356987089.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 842915089 + 137874564 = 29033^2 + 11742^2 .

It is a cyclic number.

It is not a de Polignac number, because 980789653 - 2¹ = 980789651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 980789594 and 980789603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980789651) 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 3 ways as a sum of consecutive naturals, for example, 28846738 + ... + 28846771.

It is an arithmetic number, because the mean of its divisors is an integer number (259620795).

Almost surely, 2^980789653 is an apocalyptic number.

It is an amenable number.

980789653 is a deficient number, since it is larger than the sum of its proper divisors (57693527).

980789653 is a wasteful number, since it uses less digits than its factorization.

980789653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57693526.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 980789653 is about 31317.5614152826. The cubic root of 980789653 is about 993.5551035429. Note that the first 3 decimals are identical.

The spelling of 980789653 in words is "nine hundred eighty million, seven hundred eighty-nine thousand, six hundred fifty-three".