89994539 has 2 divisors, whose sum is σ = 89994540. Its totient is φ = 89994538.

The previous prime is 89994523. The next prime is 89994547. The reversal of 89994539 is 93549998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89994539 - 2⁴ = 89994523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (89994599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44997269 + 44997270.

It is an arithmetic number, because the mean of its divisors is an integer number (44997270).

Almost surely, 2^89994539 is an apocalyptic number.

89994539 is a deficient number, since it is larger than the sum of its proper divisors (1).

89994539 is an equidigital number, since it uses as much as digits as its factorization.

89994539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 56.

The square root of 89994539 is about 9486.5451561672. The cubic root of 89994539 is about 448.1314104163.

The spelling of 89994539 in words is "eighty-nine million, nine hundred ninety-four thousand, five hundred thirty-nine".