28301029997 has 2 divisors, whose sum is σ = 28301029998. Its totient is φ = 28301029996.

The previous prime is 28301029987. The next prime is 28301030071. The reversal of 28301029997 is 79992010382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24806565001 + 3494464996 = 157501^2 + 59114^2 .

It is a cyclic number.

It is not a de Polignac number, because 28301029997 - 2²⁰ = 28299981421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28301029927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14150514998 + 14150514999.

It is an arithmetic number, because the mean of its divisors is an integer number (14150514999).

Almost surely, 2^28301029997 is an apocalyptic number.

It is an amenable number.

28301029997 is a deficient number, since it is larger than the sum of its proper divisors (1).

28301029997 is an equidigital number, since it uses as much as digits as its factorization.

28301029997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 28301029997 in words is "twenty-eight billion, three hundred one million, twenty-nine thousand, nine hundred ninety-seven".