108494993 has 2 divisors, whose sum is σ = 108494994. Its totient is φ = 108494992.

The previous prime is 108494987. The next prime is 108495011. The reversal of 108494993 is 399494801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84953089 + 23541904 = 9217^2 + 4852^2 .

It is a cyclic number.

It is not a de Polignac number, because 108494993 - 2²² = 104300689 is a prime.

It is not a weakly prime, because it can be changed into another prime (108494093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54247496 + 54247497.

It is an arithmetic number, because the mean of its divisors is an integer number (54247497).

Almost surely, 2^108494993 is an apocalyptic number.

It is an amenable number.

108494993 is a deficient number, since it is larger than the sum of its proper divisors (1).

108494993 is an equidigital number, since it uses as much as digits as its factorization.

108494993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 108494993 is about 10416.0929815358. The cubic root of 108494993 is about 476.9467554221.

The spelling of 108494993 in words is "one hundred eight million, four hundred ninety-four thousand, nine hundred ninety-three".