983540505 has 32 divisors (see below), whose sum is σ = 1615832064. Its totient is φ = 510584256.

The previous prime is 983540501. The next prime is 983540527. The reversal of 983540505 is 505045389.

It is not a de Polignac number, because 983540505 - 2² = 983540501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (983540501) 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 31 ways as a sum of consecutive naturals, for example, 195532 + ... + 200498.

It is an arithmetic number, because the mean of its divisors is an integer number (50494752).

Almost surely, 2^983540505 is an apocalyptic number.

It is an amenable number.

983540505 is a deficient number, since it is larger than the sum of its proper divisors (632291559).

983540505 is a wasteful number, since it uses less digits than its factorization.

983540505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 983540505 is about 31361.4493446971. The cubic root of 983540505 is about 994.4831216909.

The spelling of 983540505 in words is "nine hundred eighty-three million, five hundred forty thousand, five hundred five".