28640119 has 2 divisors, whose sum is σ = 28640120. Its totient is φ = 28640118.

The previous prime is 28640069. The next prime is 28640147. The reversal of 28640119 is 91104682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28640119 - 2¹⁵ = 28607351 is a prime.

It is a super-2 number, since 2×28640119² = 1640512832668322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28640419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14320059 + 14320060.

It is an arithmetic number, because the mean of its divisors is an integer number (14320060).

Almost surely, 2^28640119 is an apocalyptic number.

28640119 is a deficient number, since it is larger than the sum of its proper divisors (1).

28640119 is an equidigital number, since it uses as much as digits as its factorization.

28640119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 28640119 is about 5351.6463821893. The cubic root of 28640119 is about 305.9555056555.

The spelling of 28640119 in words is "twenty-eight million, six hundred forty thousand, one hundred nineteen".