89645042 has 8 divisors (see below), whose sum is σ = 134583132. Its totient is φ = 44784000.

The previous prime is 89645041. The next prime is 89645069. The reversal of 89645042 is 24054698.

It can be written as a sum of positive squares in 2 ways, for example, as 86508601 + 3136441 = 9301^2 + 1771^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 89644987 and 89645005.

It is not an unprimeable number, because it can be changed into a prime (89645041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16259 + ... + 21062.

Almost surely, 2^89645042 is an apocalyptic number.

89645042 is a deficient number, since it is larger than the sum of its proper divisors (44938090).

89645042 is a wasteful number, since it uses less digits than its factorization.

89645042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38524.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 89645042 is about 9468.1065688975. The cubic root of 89645042 is about 447.5505463955.

The spelling of 89645042 in words is "eighty-nine million, six hundred forty-five thousand, forty-two".