28423349 has 2 divisors, whose sum is σ = 28423350. Its totient is φ = 28423348.

The previous prime is 28423333. The next prime is 28423361. The reversal of 28423349 is 94332482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15856324 + 12567025 = 3982^2 + 3545^2 .

It is a cyclic number.

It is not a de Polignac number, because 28423349 - 2⁴ = 28423333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28423379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14211674 + 14211675.

It is an arithmetic number, because the mean of its divisors is an integer number (14211675).

Almost surely, 2^28423349 is an apocalyptic number.

It is an amenable number.

28423349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28423349 is an equidigital number, since it uses as much as digits as its factorization.

28423349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 28423349 is about 5331.3552685973. The cubic root of 28423349 is about 305.1816493853.

The spelling of 28423349 in words is "twenty-eight million, four hundred twenty-three thousand, three hundred forty-nine".