89789517 has 6 divisors (see below), whose sum is σ = 129695982. Its totient is φ = 59859672.

The previous prime is 89789509. The next prime is 89789527. The reversal of 89789517 is 71598798.

It can be written as a sum of positive squares in only one way, i.e., 75794436 + 13995081 = 8706^2 + 3741^2 .

It is not a de Polignac number, because 89789517 - 2³ = 89789509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89789507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4988298 + ... + 4988315.

It is an arithmetic number, because the mean of its divisors is an integer number (21615997).

Almost surely, 2^89789517 is an apocalyptic number.

It is an amenable number.

89789517 is a deficient number, since it is larger than the sum of its proper divisors (39906465).

89789517 is a wasteful number, since it uses less digits than its factorization.

89789517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976619 (or 9976616 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The square root of 89789517 is about 9475.7330587137. The cubic root of 89789517 is about 447.7908465795.

The spelling of 89789517 in words is "eighty-nine million, seven hundred eighty-nine thousand, five hundred seventeen".