899999929 has 2 divisors, whose sum is σ = 899999930. Its totient is φ = 899999928.

The previous prime is 899999921. The next prime is 899999963. The reversal of 899999929 is 929999998.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873498025 + 26501904 = 29555^2 + 5148^2 .

It is a cyclic number.

It is not a de Polignac number, because 899999929 - 2³ = 899999921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899999921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449999964 + 449999965.

It is an arithmetic number, because the mean of its divisors is an integer number (449999965).

Almost surely, 2^899999929 is an apocalyptic number.

It is an amenable number.

899999929 is a deficient number, since it is larger than the sum of its proper divisors (1).

899999929 is an equidigital number, since it uses as much as digits as its factorization.

899999929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76527504, while the sum is 73.

The square root of 899999929 is about 29999.9988166666. The cubic root of 899999929 is about 965.4893592168.

The spelling of 899999929 in words is "eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred twenty-nine".