980783928 has 24 divisors (see below), whose sum is σ = 2656290000. Its totient is φ = 326927952.

The previous prime is 980783927. The next prime is 980783957. The reversal of 980783928 is 829387089.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×980783928² = 1923874226846218368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980783927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6810928 + ... + 6811071.

It is an arithmetic number, because the mean of its divisors is an integer number (110678750).

Almost surely, 2^980783928 is an apocalyptic number.

It is an amenable number.

980783928 is an abundant number, since it is smaller than the sum of its proper divisors (1675506072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

980783928 is a wasteful number, since it uses less digits than its factorization.

980783928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13622011 (or 13622004 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 980783928 is about 31317.4700127581. The cubic root of 980783928 is about 993.5531703679.

The spelling of 980783928 in words is "nine hundred eighty million, seven hundred eighty-three thousand, nine hundred twenty-eight".