89381651 has 4 divisors (see below), whose sum is σ = 89416872. Its totient is φ = 89346432.

The previous prime is 89381647. The next prime is 89381659. The reversal of 89381651 is 15618398.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15618398 = 2 ⋅7809199.

It is a cyclic number.

It is not a de Polignac number, because 89381651 - 2² = 89381647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89381599 and 89381608.

It is not an unprimeable number, because it can be changed into a prime (89381659) 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, 13481 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (22354218).

Almost surely, 2^89381651 is an apocalyptic number.

89381651 is a deficient number, since it is larger than the sum of its proper divisors (35221).

89381651 is a wasteful number, since it uses less digits than its factorization.

89381651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35220.

The product of its digits is 51840, while the sum is 41.

The square root of 89381651 is about 9454.1869560529. The cubic root of 89381651 is about 447.1117921606. Note that the first 3 decimals are identical.

The spelling of 89381651 in words is "eighty-nine million, three hundred eighty-one thousand, six hundred fifty-one".