89867880 has 80 divisors (see below), whose sum is σ = 302066820. Its totient is φ = 23963904.

The previous prime is 89867873. The next prime is 89867887. The reversal of 89867880 is 8876898.

It is an interprime number because it is at equal distance from previous prime (89867873) and next prime (89867887).

It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 1920996 = 9378^2 + 1386^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (89867887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10629 + ... + 17108.

Almost surely, 2^89867880 is an apocalyptic number.

It is an amenable number.

89867880 is an abundant number, since it is smaller than the sum of its proper divisors (212198940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89867880 is a wasteful number, since it uses less digits than its factorization.

89867880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27760 (or 27747 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 89867880 is about 9479.8670876759. The cubic root of 89867880 is about 447.9210771899.

The spelling of 89867880 in words is "eighty-nine million, eight hundred sixty-seven thousand, eight hundred eighty".