88432129 has 4 divisors (see below), whose sum is σ = 88653060. Its totient is φ = 88211200.

The previous prime is 88432117. The next prime is 88432139. The reversal of 88432129 is 92123488.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52707600 + 35724529 = 7260^2 + 5977^2 .

It is a cyclic number.

It is not a de Polignac number, because 88432129 - 2⁹ = 88431617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88432139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109864 + ... + 110665.

It is an arithmetic number, because the mean of its divisors is an integer number (22163265).

Almost surely, 2^88432129 is an apocalyptic number.

It is an amenable number.

88432129 is a deficient number, since it is larger than the sum of its proper divisors (220931).

88432129 is a wasteful number, since it uses less digits than its factorization.

88432129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220930.

The product of its digits is 27648, while the sum is 37.

The square root of 88432129 is about 9403.8358662835. The cubic root of 88432129 is about 445.5228949921.

The spelling of 88432129 in words is "eighty-eight million, four hundred thirty-two thousand, one hundred twenty-nine".