28788373 has 2 divisors, whose sum is σ = 28788374. Its totient is φ = 28788372.

The previous prime is 28788349. The next prime is 28788377. The reversal of 28788373 is 37388782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15194404 + 13593969 = 3898^2 + 3687^2 .

It is a cyclic number.

It is not a de Polignac number, because 28788373 - 2⁹ = 28787861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28788377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14394186 + 14394187.

It is an arithmetic number, because the mean of its divisors is an integer number (14394187).

Almost surely, 2^28788373 is an apocalyptic number.

It is an amenable number.

28788373 is a deficient number, since it is larger than the sum of its proper divisors (1).

28788373 is an equidigital number, since it uses as much as digits as its factorization.

28788373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 46.

The square root of 28788373 is about 5365.4797548775. The cubic root of 28788373 is about 306.4825179618.

It can be divided in two parts, 28788 and 373, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28788373 in words is "twenty-eight million, seven hundred eighty-eight thousand, three hundred seventy-three".