28348823 has 2 divisors, whose sum is σ = 28348824. Its totient is φ = 28348822.

The previous prime is 28348819. The next prime is 28348847. The reversal of 28348823 is 32884382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28348823 - 2² = 28348819 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28348883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14174411 + 14174412.

It is an arithmetic number, because the mean of its divisors is an integer number (14174412).

Almost surely, 2^28348823 is an apocalyptic number.

28348823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28348823 is an equidigital number, since it uses as much as digits as its factorization.

28348823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 38.

The square root of 28348823 is about 5324.3612762471. The cubic root of 28348823 is about 304.9146872382.

The spelling of 28348823 in words is "twenty-eight million, three hundred forty-eight thousand, eight hundred twenty-three".