108958999 has 2 divisors, whose sum is σ = 108959000. Its totient is φ = 108958998.

The previous prime is 108958991. The next prime is 108959021. The reversal of 108958999 is 999859801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108958999 - 2³ = 108958991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108958991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54479499 + 54479500.

It is an arithmetic number, because the mean of its divisors is an integer number (54479500).

Almost surely, 2^108958999 is an apocalyptic number.

108958999 is a deficient number, since it is larger than the sum of its proper divisors (1).

108958999 is an equidigital number, since it uses as much as digits as its factorization.

108958999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 58.

The square root of 108958999 is about 10438.3427324456. The cubic root of 108958999 is about 477.6257158274.

The spelling of 108958999 in words is "one hundred eight million, nine hundred fifty-eight thousand, nine hundred ninety-nine".