9489928829 has 2 divisors, whose sum is σ = 9489928830. Its totient is φ = 9489928828.

The previous prime is 9489928739. The next prime is 9489928897. The reversal of 9489928829 is 9288299849.

It is an a-pointer prime, because the next prime (9489928897) can be obtained adding 9489928829 to its sum of digits (68).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8815332100 + 674596729 = 93890^2 + 25973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9489928829 is a prime.

It is a super-2 number, since 2×9489928829² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4744964414 + 4744964415.

It is an arithmetic number, because the mean of its divisors is an integer number (4744964415).

Almost surely, 2^9489928829 is an apocalyptic number.

It is an amenable number.

9489928829 is a deficient number, since it is larger than the sum of its proper divisors (1).

9489928829 is an equidigital number, since it uses as much as digits as its factorization.

9489928829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53747712, while the sum is 68.

The square root of 9489928829 is about 97416.2657311396. The cubic root of 9489928829 is about 2117.1631116472.

The spelling of 9489928829 in words is "nine billion, four hundred eighty-nine million, nine hundred twenty-eight thousand, eight hundred twenty-nine".