89195421 has 16 divisors (see below), whose sum is σ = 136080000. Its totient is φ = 50907648.

The previous prime is 89195417. The next prime is 89195437. The reversal of 89195421 is 12459198.

It is not a de Polignac number, because 89195421 - 2² = 89195417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89195421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89195441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20005 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (8505000).

Almost surely, 2^89195421 is an apocalyptic number.

It is an amenable number.

89195421 is a deficient number, since it is larger than the sum of its proper divisors (46884579).

89195421 is a wasteful number, since it uses less digits than its factorization.

89195421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108.

The product of its digits is 25920, while the sum is 39.

The square root of 89195421 is about 9444.3327450911. The cubic root of 89195421 is about 446.8010515550.

The spelling of 89195421 in words is "eighty-nine million, one hundred ninety-five thousand, four hundred twenty-one".