89171894 has 16 divisors (see below), whose sum is σ = 152996256. Its totient is φ = 38184000.

The previous prime is 89171891. The next prime is 89171911. The reversal of 89171894 is 49817198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89171891) 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, 22244 + ... + 25944.

It is an arithmetic number, because the mean of its divisors is an integer number (9562266).

Almost surely, 2^89171894 is an apocalyptic number.

89171894 is a deficient number, since it is larger than the sum of its proper divisors (63824362).

89171894 is a wasteful number, since it uses less digits than its factorization.

89171894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431.

The product of its digits is 145152, while the sum is 47.

The square root of 89171894 is about 9443.0871011550. The cubic root of 89171894 is about 446.7617639899.

The spelling of 89171894 in words is "eighty-nine million, one hundred seventy-one thousand, eight hundred ninety-four".