89742191 has 12 divisors (see below), whose sum is σ = 112735056. Its totient is φ = 69928320.

The previous prime is 89742157. The next prime is 89742199. The reversal of 89742191 is 19124798.

It is not a de Polignac number, because 89742191 - 2¹⁴ = 89725807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89742199) 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 11 ways as a sum of consecutive naturals, for example, 52130 + ... + 53823.

It is an arithmetic number, because the mean of its divisors is an integer number (9394588).

Almost surely, 2^89742191 is an apocalyptic number.

89742191 is a deficient number, since it is larger than the sum of its proper divisors (22992865).

89742191 is a wasteful number, since it uses less digits than its factorization.

89742191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105982 (or 105971 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 89742191 is about 9473.2355085261. The cubic root of 89742191 is about 447.7121593166.

The spelling of 89742191 in words is "eighty-nine million, seven hundred forty-two thousand, one hundred ninety-one".