28422707 has 2 divisors, whose sum is σ = 28422708. Its totient is φ = 28422706.

The previous prime is 28422703. The next prime is 28422721. The reversal of 28422707 is 70722482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28422707 - 2² = 28422703 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28422701) 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, 14211353 + 14211354.

It is an arithmetic number, because the mean of its divisors is an integer number (14211354).

Almost surely, 2^28422707 is an apocalyptic number.

28422707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28422707 is an equidigital number, since it uses as much as digits as its factorization.

28422707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 28422707 is about 5331.2950584262. The cubic root of 28422707 is about 305.1793516489.

The spelling of 28422707 in words is "twenty-eight million, four hundred twenty-two thousand, seven hundred seven".