89489399 has 2 divisors, whose sum is σ = 89489400. Its totient is φ = 89489398.

The previous prime is 89489381. The next prime is 89489423. The reversal of 89489399 is 99398498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89489399 - 2⁸ = 89489143 is a prime.

It is a super-3 number, since 3×89489399³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89489329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44744699 + 44744700.

It is an arithmetic number, because the mean of its divisors is an integer number (44744700).

Almost surely, 2^89489399 is an apocalyptic number.

89489399 is a deficient number, since it is larger than the sum of its proper divisors (1).

89489399 is an equidigital number, since it uses as much as digits as its factorization.

89489399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 59.

The square root of 89489399 is about 9459.8836673608. The cubic root of 89489399 is about 447.2913818027.

Subtracting 89489399 from its reverse (99398498), we obtain a palindrome (9909099).

The spelling of 89489399 in words is "eighty-nine million, four hundred eighty-nine thousand, three hundred ninety-nine".