99622489 has 2 divisors, whose sum is σ = 99622490. Its totient is φ = 99622488.

The previous prime is 99622459. The next prime is 99622519. The reversal of 99622489 is 98422699.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (99622459) and next prime (99622519).

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 19430464 = 8955^2 + 4408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99622489 is a prime.

It is not a weakly prime, because it can be changed into another prime (99622409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49811244 + 49811245.

It is an arithmetic number, because the mean of its divisors is an integer number (49811245).

Almost surely, 2^99622489 is an apocalyptic number.

It is an amenable number.

99622489 is a deficient number, since it is larger than the sum of its proper divisors (1).

99622489 is an equidigital number, since it uses as much as digits as its factorization.

99622489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 99622489 is about 9981.1066019756. The cubic root of 99622489 is about 463.5740632085.

The spelling of 99622489 in words is "ninety-nine million, six hundred twenty-two thousand, four hundred eighty-nine".