28495623 has 16 divisors (see below), whose sum is σ = 41481440. Its totient is φ = 17293824.

The previous prime is 28495619. The next prime is 28495631. The reversal of 28495623 is 32659482.

It is a happy number.

It is not a de Polignac number, because 28495623 - 2² = 28495619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495613) 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, 2158 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (2592590).

Almost surely, 2^28495623 is an apocalyptic number.

28495623 is a deficient number, since it is larger than the sum of its proper divisors (12985817).

28495623 is a wasteful number, since it uses less digits than its factorization.

28495623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098.

The product of its digits is 103680, while the sum is 39.

The square root of 28495623 is about 5338.1291666650. The cubic root of 28495623 is about 305.4400992237.

The spelling of 28495623 in words is "twenty-eight million, four hundred ninety-five thousand, six hundred twenty-three".