89840070 has 192 divisors, whose sum is σ = 272341440. Its totient is φ = 20984832.

The previous prime is 89840039. The next prime is 89840081. The reversal of 89840070 is 7004898.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2428092 + ... + 2428128.

It is an arithmetic number, because the mean of its divisors is an integer number (1418445).

Almost surely, 2^89840070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89840070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136170720).

89840070 is an abundant number, since it is smaller than the sum of its proper divisors (182501370).

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

89840070 is a wasteful number, since it uses less digits than its factorization.

89840070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 89840070 is about 9478.4001814652. The cubic root of 89840070 is about 447.8748687251.

It can be divided in two parts, 898400 and 70, that added together give a triangular number (898470 = T₁₃₄₀).

The spelling of 89840070 in words is "eighty-nine million, eight hundred forty thousand, seventy".