28035623 has 16 divisors (see below), whose sum is σ = 35354880. Its totient is φ = 21595200.

The previous prime is 28035617. The next prime is 28035629. The reversal of 28035623 is 32653082.

It is an interprime number because it is at equal distance from previous prime (28035617) and next prime (28035629).

It is not a de Polignac number, because 28035623 - 2⁶ = 28035559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28035629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4808 + ... + 8898.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680).

Almost surely, 2^28035623 is an apocalyptic number.

28035623 is a deficient number, since it is larger than the sum of its proper divisors (7319257).

28035623 is a wasteful number, since it uses less digits than its factorization.

28035623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 28035623 is about 5294.8676092986. The cubic root of 28035623 is about 303.7876192914.

The spelling of 28035623 in words is "twenty-eight million, thirty-five thousand, six hundred twenty-three".