89245777 has 2 divisors, whose sum is σ = 89245778. Its totient is φ = 89245776.

The previous prime is 89245763. The next prime is 89245787. The reversal of 89245777 is 77754298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85544001 + 3701776 = 9249^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 89245777 - 2⁷ = 89245649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89245777.

It is not a weakly prime, because it can be changed into another prime (89245787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44622888 + 44622889.

It is an arithmetic number, because the mean of its divisors is an integer number (44622889).

Almost surely, 2^89245777 is an apocalyptic number.

It is an amenable number.

89245777 is a deficient number, since it is larger than the sum of its proper divisors (1).

89245777 is an equidigital number, since it uses as much as digits as its factorization.

89245777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 49.

The square root of 89245777 is about 9446.9983063405. The cubic root of 89245777 is about 446.8851174588.

The spelling of 89245777 in words is "eighty-nine million, two hundred forty-five thousand, seven hundred seventy-seven".