28562629 has 2 divisors, whose sum is σ = 28562630. Its totient is φ = 28562628.

The previous prime is 28562627. The next prime is 28562647. The reversal of 28562629 is 92626582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18258529 + 10304100 = 4273^2 + 3210^2 .

It is a cyclic number.

It is not a de Polignac number, because 28562629 - 2¹ = 28562627 is a prime.

Together with 28562627, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 28562591 and 28562600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28562623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14281314 + 14281315.

It is an arithmetic number, because the mean of its divisors is an integer number (14281315).

Almost surely, 2^28562629 is an apocalyptic number.

It is an amenable number.

28562629 is a deficient number, since it is larger than the sum of its proper divisors (1).

28562629 is an equidigital number, since it uses as much as digits as its factorization.

28562629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 28562629 is about 5344.4016503253. The cubic root of 28562629 is about 305.6793207394.

The spelling of 28562629 in words is "twenty-eight million, five hundred sixty-two thousand, six hundred twenty-nine".