28036867 has 2 divisors, whose sum is σ = 28036868. Its totient is φ = 28036866.

The previous prime is 28036807. The next prime is 28036919. The reversal of 28036867 is 76863082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28036867 - 2¹⁵ = 28004099 is a prime.

It is a super-2 number, since 2×28036867² = 1572131822351378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28036807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14018433 + 14018434.

It is an arithmetic number, because the mean of its divisors is an integer number (14018434).

Almost surely, 2^28036867 is an apocalyptic number.

28036867 is a deficient number, since it is larger than the sum of its proper divisors (1).

28036867 is an equidigital number, since it uses as much as digits as its factorization.

28036867 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 28036867 is about 5294.9850802434. The cubic root of 28036867 is about 303.7921124584.

The spelling of 28036867 in words is "twenty-eight million, thirty-six thousand, eight hundred sixty-seven".