29020889 has 2 divisors, whose sum is σ = 29020890. Its totient is φ = 29020888.

The previous prime is 29020883. The next prime is 29020891. The reversal of 29020889 is 98802092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16875664 + 12145225 = 4108^2 + 3485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29020889 is a prime.

Together with 29020891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29020883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14510444 + 14510445.

It is an arithmetic number, because the mean of its divisors is an integer number (14510445).

Almost surely, 2^29020889 is an apocalyptic number.

It is an amenable number.

29020889 is a deficient number, since it is larger than the sum of its proper divisors (1).

29020889 is an equidigital number, since it uses as much as digits as its factorization.

29020889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 29020889 is about 5387.1039529603. The cubic root of 29020889 is about 307.3054322503.

The spelling of 29020889 in words is "twenty-nine million, twenty thousand, eight hundred eighty-nine".