89609436 has 192 divisors, whose sum is σ = 282240000. Its totient is φ = 24554880.

The previous prime is 89609419. The next prime is 89609441. The reversal of 89609436 is 63490698.

89609436 is a `hidden beast` number, since 8 + 9 + 609 + 4 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 89609391 and 89609400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1518775 + ... + 1518833.

It is an arithmetic number, because the mean of its divisors is an integer number (1470000).

Almost surely, 2^89609436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89609436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141120000).

89609436 is an abundant number, since it is smaller than the sum of its proper divisors (192630564).

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

89609436 is a wasteful number, since it uses less digits than its factorization.

89609436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 89609436 is about 9466.2260695591. The cubic root of 89609436 is about 447.4912845384.

The spelling of 89609436 in words is "eighty-nine million, six hundred nine thousand, four hundred thirty-six".