28812622 has 8 divisors (see below), whose sum is σ = 43340400. Its totient is φ = 14365824.

The previous prime is 28812611. The next prime is 28812647. The reversal of 28812622 is 22621882.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19347 + ... + 20782.

It is an arithmetic number, because the mean of its divisors is an integer number (5417550).

Almost surely, 2^28812622 is an apocalyptic number.

28812622 is a deficient number, since it is larger than the sum of its proper divisors (14527778).

28812622 is a wasteful number, since it uses less digits than its factorization.

28812622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40490.

The product of its digits is 6144, while the sum is 31.

The square root of 28812622 is about 5367.7390025969. The cubic root of 28812622 is about 306.5685458509.

The spelling of 28812622 in words is "twenty-eight million, eight hundred twelve thousand, six hundred twenty-two".