28179733 has 2 divisors, whose sum is σ = 28179734. Its totient is φ = 28179732.

The previous prime is 28179653. The next prime is 28179769. The reversal of 28179733 is 33797182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18301284 + 9878449 = 4278^2 + 3143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28179733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28170733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14089866 + 14089867.

It is an arithmetic number, because the mean of its divisors is an integer number (14089867).

Almost surely, 2^28179733 is an apocalyptic number.

It is an amenable number.

28179733 is a deficient number, since it is larger than the sum of its proper divisors (1).

28179733 is an equidigital number, since it uses as much as digits as its factorization.

28179733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 28179733 is about 5308.4586275114. The cubic root of 28179733 is about 304.3072443409.

The spelling of 28179733 in words is "twenty-eight million, one hundred seventy-nine thousand, seven hundred thirty-three".