89220737 has 2 divisors, whose sum is σ = 89220738. Its totient is φ = 89220736.

The previous prime is 89220731. The next prime is 89220757. The reversal of 89220737 is 73702298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77721856 + 11498881 = 8816^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 89220737 - 2¹² = 89216641 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89220737.

It is not a weakly prime, because it can be changed into another prime (89220731) 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, 44610368 + 44610369.

It is an arithmetic number, because the mean of its divisors is an integer number (44610369).

Almost surely, 2^89220737 is an apocalyptic number.

It is an amenable number.

89220737 is a deficient number, since it is larger than the sum of its proper divisors (1).

89220737 is an equidigital number, since it uses as much as digits as its factorization.

89220737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 89220737 is about 9445.6729246783. The cubic root of 89220737 is about 446.8433188423.

The spelling of 89220737 in words is "eighty-nine million, two hundred twenty thousand, seven hundred thirty-seven".