89684742 has 32 divisors (see below), whose sum is σ = 209359872. Its totient is φ = 25078464.

The previous prime is 89684717. The next prime is 89684747. The reversal of 89684742 is 24748698.

It is a junction number, because it is equal to n+sod(n) for n = 89684691 and 89684700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89684747) 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, 20743 + ... + 24690.

It is an arithmetic number, because the mean of its divisors is an integer number (6542496).

Almost surely, 2^89684742 is an apocalyptic number.

89684742 is an abundant number, since it is smaller than the sum of its proper divisors (119675130).

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

89684742 is a wasteful number, since it uses less digits than its factorization.

89684742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45492.

The product of its digits is 774144, while the sum is 48.

The square root of 89684742 is about 9470.2028489362. The cubic root of 89684742 is about 447.6166037185.

The spelling of 89684742 in words is "eighty-nine million, six hundred eighty-four thousand, seven hundred forty-two".