89501971 has 16 divisors (see below), whose sum is σ = 98572320. Its totient is φ = 80766720.

The previous prime is 89501941. The next prime is 89501983. The reversal of 89501971 is 17910598.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89501971 - 2⁷ = 89501843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89501911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117231 + ... + 117991.

It is an arithmetic number, because the mean of its divisors is an integer number (6160770).

Almost surely, 2^89501971 is an apocalyptic number.

89501971 is a deficient number, since it is larger than the sum of its proper divisors (9070349).

89501971 is a wasteful number, since it uses less digits than its factorization.

89501971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 89501971 is about 9460.5481342256. The cubic root of 89501971 is about 447.3123268681.

The spelling of 89501971 in words is "eighty-nine million, five hundred one thousand, nine hundred seventy-one".