983934723565 has 8 divisors (see below), whose sum is σ = 1202999435928. Its totient is φ = 772295933760.

The previous prime is 983934723557. The next prime is 983934723571. The reversal of 983934723565 is 565327439389.

It can be written as a sum of positive squares in 4 ways, for example, as 69239501956 + 914695221609 = 263134^2 + 956397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 983934723565 - 2³ = 983934723557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 983934723497 and 983934723506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856480346 + ... + 1856480875.

It is an arithmetic number, because the mean of its divisors is an integer number (150374929491).

Almost surely, 2^983934723565 is an apocalyptic number.

It is an amenable number.

983934723565 is a deficient number, since it is larger than the sum of its proper divisors (219064712363).

983934723565 is a wasteful number, since it uses less digits than its factorization.

983934723565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712961279.

The product of its digits is 146966400, while the sum is 64.

The spelling of 983934723565 in words is "nine hundred eighty-three billion, nine hundred thirty-four million, seven hundred twenty-three thousand, five hundred sixty-five".