108729429 has 16 divisors (see below), whose sum is σ = 147141120. Its totient is φ = 71409600.

The previous prime is 108729427. The next prime is 108729437. The reversal of 108729429 is 924927801.

It is not a de Polignac number, because 108729429 - 2¹ = 108729427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108729427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68604 + ... + 70170.

It is an arithmetic number, because the mean of its divisors is an integer number (9196320).

Almost surely, 2^108729429 is an apocalyptic number.

It is an amenable number.

108729429 is a deficient number, since it is larger than the sum of its proper divisors (38411691).

108729429 is a wasteful number, since it uses less digits than its factorization.

108729429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 108729429 is about 10427.3404567032. The cubic root of 108729429 is about 477.2900371640.

It can be divided in two parts, 10872 and 9429, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 108729429 in words is "one hundred eight million, seven hundred twenty-nine thousand, four hundred twenty-nine".