28060997 has 2 divisors, whose sum is σ = 28060998. Its totient is φ = 28060996.

The previous prime is 28060993. The next prime is 28061017. The reversal of 28060997 is 79906082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22743361 + 5317636 = 4769^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 28060997 - 2² = 28060993 is a prime.

It is a super-3 number, since 3×28060997³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28060993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030498 + 14030499.

It is an arithmetic number, because the mean of its divisors is an integer number (14030499).

Almost surely, 2^28060997 is an apocalyptic number.

It is an amenable number.

28060997 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060997 is an equidigital number, since it uses as much as digits as its factorization.

28060997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 28060997 is about 5297.2631612938. The cubic root of 28060997 is about 303.8792406157.

The spelling of 28060997 in words is "twenty-eight million, sixty thousand, nine hundred ninety-seven".