89437860 has 36 divisors (see below), whose sum is σ = 271295388. Its totient is φ = 23850048.

The previous prime is 89437853. The next prime is 89437861. The reversal of 89437860 is 6873498.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63489024 + 25948836 = 7968^2 + 5094^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (89437861) 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 11 ways as a sum of consecutive naturals, for example, 248259 + ... + 248618.

It is an arithmetic number, because the mean of its divisors is an integer number (7535983).

Almost surely, 2^89437860 is an apocalyptic number.

It is an amenable number.

89437860 is an abundant number, since it is smaller than the sum of its proper divisors (181857528).

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

89437860 is a wasteful number, since it uses less digits than its factorization.

89437860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496892 (or 496887 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 89437860 is about 9457.1591929078. The cubic root of 89437860 is about 447.2054968533.

The spelling of 89437860 in words is "eighty-nine million, four hundred thirty-seven thousand, eight hundred sixty".