983673521 has 2 divisors, whose sum is σ = 983673522. Its totient is φ = 983673520.

The previous prime is 983673503. The next prime is 983673583. The reversal of 983673521 is 125376389.

983673521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921972496 + 61701025 = 30364^2 + 7855^2 .

It is a cyclic number.

It is not a de Polignac number, because 983673521 - 2²⁶ = 916564657 is a prime.

It is a super-2 number, since 2×983673521² = 1935227191833074882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (983673721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491836760 + 491836761.

It is an arithmetic number, because the mean of its divisors is an integer number (491836761).

Almost surely, 2^983673521 is an apocalyptic number.

It is an amenable number.

983673521 is a deficient number, since it is larger than the sum of its proper divisors (1).

983673521 is an equidigital number, since it uses as much as digits as its factorization.

983673521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 983673521 is about 31363.5699658059. The cubic root of 983673521 is about 994.5279516371.

The spelling of 983673521 in words is "nine hundred eighty-three million, six hundred seventy-three thousand, five hundred twenty-one".