28062407 has 2 divisors, whose sum is σ = 28062408. Its totient is φ = 28062406.

The previous prime is 28062403. The next prime is 28062413. The reversal of 28062407 is 70426082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28062407 - 2² = 28062403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28062407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28062403) 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, 14031203 + 14031204.

It is an arithmetic number, because the mean of its divisors is an integer number (14031204).

Almost surely, 2^28062407 is an apocalyptic number.

28062407 is a deficient number, since it is larger than the sum of its proper divisors (1).

28062407 is an equidigital number, since it uses as much as digits as its factorization.

28062407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28062407 is about 5297.3962472143. The cubic root of 28062407 is about 303.8843302727.

Adding to 28062407 its reverse (70426082), we get a palindrome (98488489).

The spelling of 28062407 in words is "twenty-eight million, sixty-two thousand, four hundred seven".