28465319 has 2 divisors, whose sum is σ = 28465320. Its totient is φ = 28465318.

The previous prime is 28465313. The next prime is 28465331. The reversal of 28465319 is 91356482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28465319 - 2¹⁶ = 28399783 is a prime.

It is a super-2 number, since 2×28465319² = 1620548771543522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28465313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14232659 + 14232660.

It is an arithmetic number, because the mean of its divisors is an integer number (14232660).

Almost surely, 2^28465319 is an apocalyptic number.

28465319 is a deficient number, since it is larger than the sum of its proper divisors (1).

28465319 is an equidigital number, since it uses as much as digits as its factorization.

28465319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 28465319 is about 5335.2899640038. The cubic root of 28465319 is about 305.3317862165.

The spelling of 28465319 in words is "twenty-eight million, four hundred sixty-five thousand, three hundred nineteen".