983540651 has 4 divisors (see below), whose sum is σ = 1026303312. Its totient is φ = 940777992.

The previous prime is 983540647. The next prime is 983540669. The reversal of 983540651 is 156045389.

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

It is a cyclic number.

It is not a de Polignac number, because 983540651 - 2² = 983540647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 983540599 and 983540608.

It is not an unprimeable number, because it can be changed into a prime (983540611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21381296 + ... + 21381341.

It is an arithmetic number, because the mean of its divisors is an integer number (256575828).

Almost surely, 2^983540651 is an apocalyptic number.

983540651 is a deficient number, since it is larger than the sum of its proper divisors (42762661).

983540651 is a wasteful number, since it uses less digits than its factorization.

983540651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42762660.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 983540651 is about 31361.4516723955. The cubic root of 983540651 is about 994.4831708990.

The spelling of 983540651 in words is "nine hundred eighty-three million, five hundred forty thousand, six hundred fifty-one".