108643311 has 72 divisors (see below), whose sum is σ = 201131424. Its totient is φ = 55157760.

The previous prime is 108643307. The next prime is 108643321. The reversal of 108643311 is 113346801.

108643311 is a `hidden beast` number, since 1 + 0 + 8 + 643 + 3 + 11 = 666.

It is not a de Polignac number, because 108643311 - 2² = 108643307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108643321) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 386491 + ... + 386771.

It is an arithmetic number, because the mean of its divisors is an integer number (2793492).

Almost surely, 2^108643311 is an apocalyptic number.

108643311 is a deficient number, since it is larger than the sum of its proper divisors (92488113).

108643311 is a wasteful number, since it uses less digits than its factorization.

108643311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 108643311 is about 10423.2102060738. The cubic root of 108643311 is about 477.1639930305.

The spelling of 108643311 in words is "one hundred eight million, six hundred forty-three thousand, three hundred eleven".