28614623 has 4 divisors (see below), whose sum is σ = 28692960. Its totient is φ = 28536288.

The previous prime is 28614617. The next prime is 28614629. The reversal of 28614623 is 32641682.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28614617) and next prime (28614629).

It is a cyclic number.

It is not a de Polignac number, because 28614623 - 2⁶ = 28614559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28614623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38618 + ... + 39351.

It is an arithmetic number, because the mean of its divisors is an integer number (7173240).

Almost surely, 2^28614623 is an apocalyptic number.

28614623 is a deficient number, since it is larger than the sum of its proper divisors (78337).

28614623 is an equidigital number, since it uses as much as digits as its factorization.

28614623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78336.

The product of its digits is 13824, while the sum is 32.

The square root of 28614623 is about 5349.2637811198. The cubic root of 28614623 is about 305.8646894886.

The spelling of 28614623 in words is "twenty-eight million, six hundred fourteen thousand, six hundred twenty-three".