89967940 has 24 divisors (see below), whose sum is σ = 193542552. Its totient is φ = 35109120.

The previous prime is 89967931. The next prime is 89967949. The reversal of 89967940 is 4976998.

It is an interprime number because it is at equal distance from previous prime (89967931) and next prime (89967949).

It can be written as a sum of positive squares in 4 ways, for example, as 589824 + 89378116 = 768^2 + 9454^2 .

It is not an unprimeable number, because it can be changed into a prime (89967949) 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 7 ways as a sum of consecutive naturals, for example, 54039 + ... + 55678.

It is an arithmetic number, because the mean of its divisors is an integer number (8064273).

Almost surely, 2^89967940 is an apocalyptic number.

It is an amenable number.

89967940 is an abundant number, since it is smaller than the sum of its proper divisors (103574612).

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

89967940 is a wasteful number, since it uses less digits than its factorization.

89967940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109767 (or 109765 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 89967940 is about 9485.1431196372. The cubic root of 89967940 is about 448.0872558041.

The spelling of 89967940 in words is "eighty-nine million, nine hundred sixty-seven thousand, nine hundred forty".