28038667 has 2 divisors, whose sum is σ = 28038668. Its totient is φ = 28038666.

The previous prime is 28038653. The next prime is 28038683. The reversal of 28038667 is 76683082.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28038667 - 2¹⁹ = 27514379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28038607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14019333 + 14019334.

It is an arithmetic number, because the mean of its divisors is an integer number (14019334).

Almost surely, 2^28038667 is an apocalyptic number.

28038667 is a deficient number, since it is larger than the sum of its proper divisors (1).

28038667 is an equidigital number, since it uses as much as digits as its factorization.

28038667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28038667 is about 5295.1550496657. The cubic root of 28038667 is about 303.7986135902.

The spelling of 28038667 in words is "twenty-eight million, thirty-eight thousand, six hundred sixty-seven".