28354622 has 4 divisors (see below), whose sum is σ = 42531936. Its totient is φ = 14177310.

The previous prime is 28354621. The next prime is 28354637. The reversal of 28354622 is 22645382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22645382 = 2 ⋅11322691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28354621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7088654 + ... + 7088657.

It is an arithmetic number, because the mean of its divisors is an integer number (10632984).

Almost surely, 2^28354622 is an apocalyptic number.

28354622 is a deficient number, since it is larger than the sum of its proper divisors (14177314).

28354622 is a wasteful number, since it uses less digits than its factorization.

28354622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14177313.

The product of its digits is 23040, while the sum is 32.

The square root of 28354622 is about 5324.9058207634. The cubic root of 28354622 is about 304.9354768105.

The spelling of 28354622 in words is "twenty-eight million, three hundred fifty-four thousand, six hundred twenty-two".