28700153 has 2 divisors, whose sum is σ = 28700154. Its totient is φ = 28700152.

The previous prime is 28700143. The next prime is 28700171. The reversal of 28700153 is 35100782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 2704 = 5357^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 28700153 - 2⁸ = 28699897 is a prime.

It is not a weakly prime, because it can be changed into another prime (28700143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14350076 + 14350077.

It is an arithmetic number, because the mean of its divisors is an integer number (14350077).

Almost surely, 2^28700153 is an apocalyptic number.

It is an amenable number.

28700153 is a deficient number, since it is larger than the sum of its proper divisors (1).

28700153 is an equidigital number, since it uses as much as digits as its factorization.

28700153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 28700153 is about 5357.2523741187. The cubic root of 28700153 is about 306.1691327230.

The spelling of 28700153 in words is "twenty-eight million, seven hundred thousand, one hundred fifty-three".