88436789 has 4 divisors (see below), whose sum is σ = 101070624. Its totient is φ = 75802956.

The previous prime is 88436753. The next prime is 88436801. The reversal of 88436789 is 98763488.

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 a de Polignac number, because none of the positive numbers 2^k-88436789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88436789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88430789) 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, 6316907 + ... + 6316920.

It is an arithmetic number, because the mean of its divisors is an integer number (25267656).

Almost surely, 2^88436789 is an apocalyptic number.

It is an amenable number.

88436789 is a deficient number, since it is larger than the sum of its proper divisors (12633835).

88436789 is a wasteful number, since it uses less digits than its factorization.

88436789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12633834.

The product of its digits is 2322432, while the sum is 53.

The square root of 88436789 is about 9404.0836342517. The cubic root of 88436789 is about 445.5307205801.

It can be divided in two parts, 884 and 36789, that added together give a palindrome (37673).

The spelling of 88436789 in words is "eighty-eight million, four hundred thirty-six thousand, seven hundred eighty-nine".