89936447 has 4 divisors (see below), whose sum is σ = 90644736. Its totient is φ = 89228160.

The previous prime is 89936437. The next prime is 89936449. The reversal of 89936447 is 74463998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89936447 - 2²² = 85742143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89936395 and 89936404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89936449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353954 + ... + 354207.

It is an arithmetic number, because the mean of its divisors is an integer number (22661184).

Almost surely, 2^89936447 is an apocalyptic number.

89936447 is a deficient number, since it is larger than the sum of its proper divisors (708289).

89936447 is a wasteful number, since it uses less digits than its factorization.

89936447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708288.

The product of its digits is 1306368, while the sum is 50.

The square root of 89936447 is about 9483.4828517797. The cubic root of 89936447 is about 448.0349658482.

The spelling of 89936447 in words is "eighty-nine million, nine hundred thirty-six thousand, four hundred forty-seven".