89289591 has 8 divisors (see below), whose sum is σ = 119852400. Its totient is φ = 59126592.

The previous prime is 89289589. The next prime is 89289601. The reversal of 89289591 is 19598298.

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

It is not a de Polignac number, because 89289591 - 2¹ = 89289589 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89289581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99430 + ... + 100323.

It is an arithmetic number, because the mean of its divisors is an integer number (14981550).

Almost surely, 2^89289591 is an apocalyptic number.

89289591 is a deficient number, since it is larger than the sum of its proper divisors (30562809).

89289591 is a wasteful number, since it uses less digits than its factorization.

89289591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199905.

The product of its digits is 466560, while the sum is 51.

The square root of 89289591 is about 9449.3169594421. The cubic root of 89289591 is about 446.9582362174.

The spelling of 89289591 in words is "eighty-nine million, two hundred eighty-nine thousand, five hundred ninety-one".