88877889 has 6 divisors (see below), whose sum is σ = 128379186. Its totient is φ = 59251920.

The previous prime is 88877881. The next prime is 88877897. The reversal of 88877889 is 98877888.

It is an interprime number because it is at equal distance from previous prime (88877881) and next prime (88877897).

It can be written as a sum of positive squares in only one way, i.e., 73667889 + 15210000 = 8583^2 + 3900^2 .

It is not a de Polignac number, because 88877889 - 2³ = 88877881 is a prime.

It is a super-4 number, since 4×88877889⁴ (a number of 33 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (88877881) 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 5 ways as a sum of consecutive naturals, for example, 4937652 + ... + 4937669.

It is an arithmetic number, because the mean of its divisors is an integer number (21396531).

Almost surely, 2^88877889 is an apocalyptic number.

It is an amenable number.

88877889 is a deficient number, since it is larger than the sum of its proper divisors (39501297).

88877889 is a wasteful number, since it uses less digits than its factorization.

88877889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875327 (or 9875324 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 63.

The square root of 88877889 is about 9427.5070405702. The cubic root of 88877889 is about 446.2702234085.

Subtracting 88877889 from its reverse (98877888), we obtain a palindrome (9999999).

The spelling of 88877889 in words is "eighty-eight million, eight hundred seventy-seven thousand, eight hundred eighty-nine".