929898989 has 2 divisors, whose sum is σ = 929898990. Its totient is φ = 929898988.

The previous prime is 929898973. The next prime is 929899001. The reversal of 929898989 is 989898929.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570493225 + 359405764 = 23885^2 + 18958^2 .

It is an emirp because it is prime and its reverse (989898929) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 929898989 - 2⁴ = 929898973 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (929898889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464949494 + 464949495.

It is an arithmetic number, because the mean of its divisors is an integer number (464949495).

Almost surely, 2^929898989 is an apocalyptic number.

It is an amenable number.

929898989 is a deficient number, since it is larger than the sum of its proper divisors (1).

929898989 is an equidigital number, since it uses as much as digits as its factorization.

929898989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60466176, while the sum is 71.

The square root of 929898989 is about 30494.2451783939. The cubic root of 929898989 is about 976.0646670206.

The spelling of 929898989 in words is "nine hundred twenty-nine million, eight hundred ninety-eight thousand, nine hundred eighty-nine".