83648311 has 8 divisors (see below), whose sum is σ = 84440880. Its totient is φ = 82859712.

The previous prime is 83648269. The next prime is 83648321. The reversal of 83648311 is 11384638.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83648311 is a prime.

It is a super-3 number, since 3×83648311³ (a number of 25 digits) contains 333 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 (83648321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55281 + ... + 56773.

It is an arithmetic number, because the mean of its divisors is an integer number (10555110).

Almost surely, 2^83648311 is an apocalyptic number.

83648311 is a deficient number, since it is larger than the sum of its proper divisors (792569).

83648311 is a wasteful number, since it uses less digits than its factorization.

83648311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its digits is 13824, while the sum is 34.

The square root of 83648311 is about 9145.9450577838. The cubic root of 83648311 is about 437.3398571434.

The spelling of 83648311 in words is "eighty-three million, six hundred forty-eight thousand, three hundred eleven".