89722247 has 2 divisors, whose sum is σ = 89722248. Its totient is φ = 89722246.

The previous prime is 89722231. The next prime is 89722261. The reversal of 89722247 is 74222798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89722247 - 2⁴ = 89722231 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 (89722207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44861123 + 44861124.

It is an arithmetic number, because the mean of its divisors is an integer number (44861124).

Almost surely, 2^89722247 is an apocalyptic number.

89722247 is a deficient number, since it is larger than the sum of its proper divisors (1).

89722247 is an equidigital number, since it uses as much as digits as its factorization.

89722247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 89722247 is about 9472.1828001786. The cubic root of 89722247 is about 447.6789908490.

The spelling of 89722247 in words is "eighty-nine million, seven hundred twenty-two thousand, two hundred forty-seven".