8305495981 has 4 divisors (see below), whose sum is σ = 8309960764. Its totient is φ = 8301031200.

The previous prime is 8305495951. The next prime is 8305496041. The reversal of 8305495981 is 1895945038.

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

It can be written as a sum of positive squares in 2 ways, for example, as 653620356 + 7651875625 = 25566^2 + 87475^2 .

It is a cyclic number.

It is not a de Polignac number, because 8305495981 - 2¹³ = 8305487789 is a prime.

It is a super-2 number, since 2×8305495981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8305495951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229600 + ... + 2233321.

It is an arithmetic number, because the mean of its divisors is an integer number (2077490191).

Almost surely, 2^8305495981 is an apocalyptic number.

It is an amenable number.

8305495981 is a deficient number, since it is larger than the sum of its proper divisors (4464783).

8305495981 is a wasteful number, since it uses less digits than its factorization.

8305495981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464782.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The square root of 8305495981 is about 91134.4939142145. The cubic root of 8305495981 is about 2025.1406481388.

The spelling of 8305495981 in words is "eight billion, three hundred five million, four hundred ninety-five thousand, nine hundred eighty-one".