88724209 has 16 divisors (see below), whose sum is σ = 102735360. Its totient is φ = 75055680.

The previous prime is 88724197. The next prime is 88724213. The reversal of 88724209 is 90242788.

It is not a de Polignac number, because 88724209 - 2⁷ = 88724081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88724239) 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, 302667 + ... + 302959.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 2^88724209 is an apocalyptic number.

It is an amenable number.

88724209 is a deficient number, since it is larger than the sum of its proper divisors (14011151).

88724209 is a wasteful number, since it uses less digits than its factorization.

88724209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 88724209 is about 9419.3528970944. The cubic root of 88724209 is about 446.0128576531.

The spelling of 88724209 in words is "eighty-eight million, seven hundred twenty-four thousand, two hundred nine".