89239399 has 2 divisors, whose sum is σ = 89239400. Its totient is φ = 89239398.

The previous prime is 89239387. The next prime is 89239429. The reversal of 89239399 is 99393298.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89239399 - 2¹⁵ = 89206631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89239309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44619699 + 44619700.

It is an arithmetic number, because the mean of its divisors is an integer number (44619700).

Almost surely, 2^89239399 is an apocalyptic number.

89239399 is a deficient number, since it is larger than the sum of its proper divisors (1).

89239399 is an equidigital number, since it uses as much as digits as its factorization.

89239399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 944784, while the sum is 52.

The square root of 89239399 is about 9446.6607327669. The cubic root of 89239399 is about 446.8744715726.

The spelling of 89239399 in words is "eighty-nine million, two hundred thirty-nine thousand, three hundred ninety-nine".