88427009 has 4 divisors (see below), whose sum is σ = 96465840. Its totient is φ = 80388180.

The previous prime is 88426999. The next prime is 88427023. The reversal of 88427009 is 90072488.

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 88427009 - 2⁴ = 88426993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88427039) 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, 4019399 + ... + 4019420.

It is an arithmetic number, because the mean of its divisors is an integer number (24116460).

Almost surely, 2^88427009 is an apocalyptic number.

It is an amenable number.

88427009 is a deficient number, since it is larger than the sum of its proper divisors (8038831).

88427009 is a wasteful number, since it uses less digits than its factorization.

88427009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038830.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 88427009 is about 9403.5636330064. The cubic root of 88427009 is about 445.5142966042.

It can be divided in two parts, 8842 and 7009, that added together give a palindrome (15851).

The spelling of 88427009 in words is "eighty-eight million, four hundred twenty-seven thousand, nine".