28851061 has 2 divisors, whose sum is σ = 28851062. Its totient is φ = 28851060.

The previous prime is 28851029. The next prime is 28851073. The reversal of 28851061 is 16015882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 14161 = 5370^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 28851061 - 2⁵ = 28851029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28851161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425530 + 14425531.

It is an arithmetic number, because the mean of its divisors is an integer number (14425531).

Almost surely, 2^28851061 is an apocalyptic number.

It is an amenable number.

28851061 is a deficient number, since it is larger than the sum of its proper divisors (1).

28851061 is an equidigital number, since it uses as much as digits as its factorization.

28851061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 28851061 is about 5371.3183670306. The cubic root of 28851061 is about 306.7048165887.

The spelling of 28851061 in words is "twenty-eight million, eight hundred fifty-one thousand, sixty-one".