108996729 has 4 divisors (see below), whose sum is σ = 145328976. Its totient is φ = 72664484.

The previous prime is 108996689. The next prime is 108996733. The reversal of 108996729 is 927699801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108996729 - 2¹¹ = 108994681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108996029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18166119 + ... + 18166124.

It is an arithmetic number, because the mean of its divisors is an integer number (36332244).

Almost surely, 2^108996729 is an apocalyptic number.

It is an amenable number.

108996729 is a deficient number, since it is larger than the sum of its proper divisors (36332247).

108996729 is an equidigital number, since it uses as much as digits as its factorization.

108996729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36332246.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 108996729 is about 10440.1498552463. The cubic root of 108996729 is about 477.6808397387.

The spelling of 108996729 in words is "one hundred eight million, nine hundred ninety-six thousand, seven hundred twenty-nine".