28893629 has 2 divisors, whose sum is σ = 28893630. Its totient is φ = 28893628.

The previous prime is 28893607. The next prime is 28893671. The reversal of 28893629 is 92639882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17347225 + 11546404 = 4165^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 28893629 - 2¹² = 28889533 is a prime.

It is a Sophie Germain 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 (28893679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14446814 + 14446815.

It is an arithmetic number, because the mean of its divisors is an integer number (14446815).

Almost surely, 2^28893629 is an apocalyptic number.

It is an amenable number.

28893629 is a deficient number, since it is larger than the sum of its proper divisors (1).

28893629 is an equidigital number, since it uses as much as digits as its factorization.

28893629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 28893629 is about 5375.2794345969. The cubic root of 28893629 is about 306.8555839483.

The spelling of 28893629 in words is "twenty-eight million, eight hundred ninety-three thousand, six hundred twenty-nine".