89947091 has 8 divisors (see below), whose sum is σ = 97140960. Its totient is φ = 82792512.

The previous prime is 89947073. The next prime is 89947103. The reversal of 89947091 is 19074998.

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 89947091 - 2¹⁴ = 89930707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89947061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4970 + ... + 14303.

It is an arithmetic number, because the mean of its divisors is an integer number (12142620).

Almost surely, 2^89947091 is an apocalyptic number.

89947091 is a deficient number, since it is larger than the sum of its proper divisors (7193869).

89947091 is a wasteful number, since it uses less digits than its factorization.

89947091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19645.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 89947091 is about 9484.0440214077. The cubic root of 89947091 is about 448.0526401660.

The spelling of 89947091 in words is "eighty-nine million, nine hundred forty-seven thousand, ninety-one".