89634437 has 8 divisors (see below), whose sum is σ = 92356440. Its totient is φ = 86952960.

The previous prime is 89634431. The next prime is 89634449. The reversal of 89634437 is 73443698.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10797796 + 78836641 = 3286^2 + 8879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89634437 - 2¹⁶ = 89568901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89634431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5612 + ... + 14517.

It is an arithmetic number, because the mean of its divisors is an integer number (11544555).

Almost surely, 2^89634437 is an apocalyptic number.

It is an amenable number.

89634437 is a deficient number, since it is larger than the sum of its proper divisors (2722003).

89634437 is a wasteful number, since it uses less digits than its factorization.

89634437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20263.

The product of its digits is 435456, while the sum is 44.

The square root of 89634437 is about 9467.5465142771. The cubic root of 89634437 is about 447.5328973038.

The spelling of 89634437 in words is "eighty-nine million, six hundred thirty-four thousand, four hundred thirty-seven".