29128829 has 2 divisors, whose sum is σ = 29128830. Its totient is φ = 29128828.

The previous prime is 29128823. The next prime is 29128877. The reversal of 29128829 is 92882192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29052100 + 76729 = 5390^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 29128829 - 2²⁴ = 12351613 is a prime.

It is a super-2 number, since 2×29128829² = 1696977357822482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29128823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14564414 + 14564415.

It is an arithmetic number, because the mean of its divisors is an integer number (14564415).

Almost surely, 2^29128829 is an apocalyptic number.

It is an amenable number.

29128829 is a deficient number, since it is larger than the sum of its proper divisors (1).

29128829 is an equidigital number, since it uses as much as digits as its factorization.

29128829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The square root of 29128829 is about 5397.1130245716. The cubic root of 29128829 is about 307.6859571013.

The spelling of 29128829 in words is "twenty-nine million, one hundred twenty-eight thousand, eight hundred twenty-nine".