89895749 has 2 divisors, whose sum is σ = 89895750. Its totient is φ = 89895748.

The previous prime is 89895721. The next prime is 89895781. The reversal of 89895749 is 94759898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55026724 + 34869025 = 7418^2 + 5905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89895749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89895719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44947874 + 44947875.

It is an arithmetic number, because the mean of its divisors is an integer number (44947875).

Almost surely, 2^89895749 is an apocalyptic number.

It is an amenable number.

89895749 is a deficient number, since it is larger than the sum of its proper divisors (1).

89895749 is an equidigital number, since it uses as much as digits as its factorization.

89895749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 59.

The square root of 89895749 is about 9481.3368783099. The cubic root of 89895749 is about 447.9673741254.

The spelling of 89895749 in words is "eighty-nine million, eight hundred ninety-five thousand, seven hundred forty-nine".