89540641 has 4 divisors (see below), whose sum is σ = 90427284. Its totient is φ = 88654000.

The previous prime is 89540639. The next prime is 89540651. The reversal of 89540641 is 14604598.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38489616 + 51051025 = 6204^2 + 7145^2 .

It is a cyclic number.

It is not a de Polignac number, because 89540641 - 2¹ = 89540639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89540641.

It is not an unprimeable number, because it can be changed into a prime (89540621) 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, 443170 + ... + 443371.

It is an arithmetic number, because the mean of its divisors is an integer number (22606821).

Almost surely, 2^89540641 is an apocalyptic number.

It is an amenable number.

89540641 is a deficient number, since it is larger than the sum of its proper divisors (886643).

89540641 is a wasteful number, since it uses less digits than its factorization.

89540641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886642.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 89540641 is about 9462.5916640210. The cubic root of 89540641 is about 447.3767391446.

The spelling of 89540641 in words is "eighty-nine million, five hundred forty thousand, six hundred forty-one".