28402367 has 8 divisors (see below), whose sum is σ = 32500896. Its totient is φ = 24314112.

The previous prime is 28402357. The next prime is 28402373. The reversal of 28402367 is 76320482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28402367 - 2¹⁶ = 28336831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28402307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4763 + ... + 8915.

It is an arithmetic number, because the mean of its divisors is an integer number (4062612).

Almost surely, 2^28402367 is an apocalyptic number.

28402367 is a deficient number, since it is larger than the sum of its proper divisors (4098529).

28402367 is an equidigital number, since it uses as much as digits as its factorization.

28402367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28402367 is about 5329.3871129803. The cubic root of 28402367 is about 305.1065362844.

The spelling of 28402367 in words is "twenty-eight million, four hundred two thousand, three hundred sixty-seven".