28619029 has 2 divisors, whose sum is σ = 28619030. Its totient is φ = 28619028.

The previous prime is 28619011. The next prime is 28619033. The reversal of 28619029 is 92091682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27615025 + 1004004 = 5255^2 + 1002^2 .

It is a cyclic number.

It is not a de Polignac number, because 28619029 - 2⁷ = 28618901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28619039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14309514 + 14309515.

It is an arithmetic number, because the mean of its divisors is an integer number (14309515).

Almost surely, 2^28619029 is an apocalyptic number.

It is an amenable number.

28619029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28619029 is an equidigital number, since it uses as much as digits as its factorization.

28619029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 28619029 is about 5349.6755976414. The cubic root of 28619029 is about 305.8803874141.

The spelling of 28619029 in words is "twenty-eight million, six hundred nineteen thousand, twenty-nine".