89442499 has 2 divisors, whose sum is σ = 89442500. Its totient is φ = 89442498.

The previous prime is 89442497. The next prime is 89442517. The reversal of 89442499 is 99424498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89442499 - 2¹ = 89442497 is a prime.

Together with 89442497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89442497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44721249 + 44721250.

It is an arithmetic number, because the mean of its divisors is an integer number (44721250).

Almost surely, 2^89442499 is an apocalyptic number.

89442499 is a deficient number, since it is larger than the sum of its proper divisors (1).

89442499 is an equidigital number, since it uses as much as digits as its factorization.

89442499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 49.

The square root of 89442499 is about 9457.4044536543. The cubic root of 89442499 is about 447.2132286663.

The spelling of 89442499 in words is "eighty-nine million, four hundred forty-two thousand, four hundred ninety-nine".