89471797 has 4 divisors (see below), whose sum is σ = 92358016. Its totient is φ = 86585580.

The previous prime is 89471783. The next prime is 89471803. The reversal of 89471797 is 79717498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89471797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89471737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443063 + ... + 1443124.

It is an arithmetic number, because the mean of its divisors is an integer number (23089504).

Almost surely, 2^89471797 is an apocalyptic number.

It is an amenable number.

89471797 is a deficient number, since it is larger than the sum of its proper divisors (2886219).

89471797 is a wasteful number, since it uses less digits than its factorization.

89471797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886218.

The product of its digits is 889056, while the sum is 52.

The square root of 89471797 is about 9458.9532719006. The cubic root of 89471797 is about 447.2620534158.

The spelling of 89471797 in words is "eighty-nine million, four hundred seventy-one thousand, seven hundred ninety-seven".