89993994 has 32 divisors (see below), whose sum is σ = 189888000. Its totient is φ = 28355184.

The previous prime is 89993993. The next prime is 89993999. The reversal of 89993994 is 49939998.

It is not an unprimeable number, because it can be changed into a prime (89993993) 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 15 ways as a sum of consecutive naturals, for example, 97467 + ... + 98385.

It is an arithmetic number, because the mean of its divisors is an integer number (5934000).

Almost surely, 2^89993994 is an apocalyptic number.

89993994 is an abundant number, since it is smaller than the sum of its proper divisors (99894006).

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

89993994 is a wasteful number, since it uses less digits than its factorization.

89993994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its digits is 5668704, while the sum is 60.

The square root of 89993994 is about 9486.5164312302. The cubic root of 89993994 is about 448.1305057981.

It can be divided in two parts, 8999399 and 4, that added together give a triangular number (8999403 = T₄₂₄₂).

The spelling of 89993994 in words is "eighty-nine million, nine hundred ninety-three thousand, nine hundred ninety-four".