89407836 has 144 divisors (see below), whose sum is σ = 272656384. Its totient is φ = 24167808.

The previous prime is 89407823. The next prime is 89407837. The reversal of 89407836 is 63870498.

It is a happy number.

It is a super-2 number, since 2×89407836² = 15987522276405792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89407791 and 89407800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89407837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 400821 + ... + 401043.

Almost surely, 2^89407836 is an apocalyptic number.

89407836 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89407836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136328192).

89407836 is an abundant number, since it is smaller than the sum of its proper divisors (183248548).

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

89407836 is a wasteful number, since it uses less digits than its factorization.

89407836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 315 counting only the distinct ones).

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

The square root of 89407836 is about 9455.5716908075. The cubic root of 89407836 is about 447.1554494402.

The spelling of 89407836 in words is "eighty-nine million, four hundred seven thousand, eight hundred thirty-six".