108291393 has 24 divisors (see below), whose sum is σ = 188177600. Its totient is φ = 58623264.

The previous prime is 108291389. The next prime is 108291433. The reversal of 108291393 is 393192801.

It is not a de Polignac number, because 108291393 - 2² = 108291389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108291593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44038 + ... + 46431.

Almost surely, 2^108291393 is an apocalyptic number.

It is an amenable number.

108291393 is a deficient number, since it is larger than the sum of its proper divisors (79886207).

108291393 is a wasteful number, since it uses less digits than its factorization.

108291393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90501 (or 90498 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 108291393 is about 10406.3150538507. The cubic root of 108291393 is about 476.6482250080.

The spelling of 108291393 in words is "one hundred eight million, two hundred ninety-one thousand, three hundred ninety-three".