28967429 has 2 divisors, whose sum is σ = 28967430. Its totient is φ = 28967428.

The previous prime is 28967399. The next prime is 28967441. The reversal of 28967429 is 92476982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23668225 + 5299204 = 4865^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 28967429 - 2⁸ = 28967173 is a prime.

It is a super-2 number, since 2×28967429² = 1678223885740082, 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 (28967489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14483714 + 14483715.

It is an arithmetic number, because the mean of its divisors is an integer number (14483715).

Almost surely, 2^28967429 is an apocalyptic number.

It is an amenable number.

28967429 is a deficient number, since it is larger than the sum of its proper divisors (1).

28967429 is an equidigital number, since it uses as much as digits as its factorization.

28967429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 28967429 is about 5382.1398160955. The cubic root of 28967429 is about 307.1166182947.

The spelling of 28967429 in words is "twenty-eight million, nine hundred sixty-seven thousand, four hundred twenty-nine".