28914629 has 2 divisors, whose sum is σ = 28914630. Its totient is φ = 28914628.

The previous prime is 28914623. The next prime is 28914631. The reversal of 28914629 is 92641982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28912129 + 2500 = 5377^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 28914629 - 2²⁴ = 12137413 is a prime.

It is a Sophie Germain prime.

Together with 28914631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28914623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457314 + 14457315.

It is an arithmetic number, because the mean of its divisors is an integer number (14457315).

Almost surely, 2^28914629 is an apocalyptic number.

It is an amenable number.

28914629 is a deficient number, since it is larger than the sum of its proper divisors (1).

28914629 is an equidigital number, since it uses as much as digits as its factorization.

28914629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 28914629 is about 5377.2324666133. The cubic root of 28914629 is about 306.9299072155.

The spelling of 28914629 in words is "twenty-eight million, nine hundred fourteen thousand, six hundred twenty-nine".