28854651 has 16 divisors (see below), whose sum is σ = 44169984. Its totient is φ = 16413024.

The previous prime is 28854649. The next prime is 28854659. The reversal of 28854651 is 15645882.

It is not a de Polignac number, because 28854651 - 2¹ = 28854649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28854659) 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, 1741 + ... + 7793.

It is an arithmetic number, because the mean of its divisors is an integer number (2760624).

Almost surely, 2^28854651 is an apocalyptic number.

28854651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28854651 is a deficient number, since it is larger than the sum of its proper divisors (15315333).

28854651 is a wasteful number, since it uses less digits than its factorization.

28854651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6290.

The product of its digits is 76800, while the sum is 39.

The square root of 28854651 is about 5371.6525390237. The cubic root of 28854651 is about 306.7175373759.

The spelling of 28854651 in words is "twenty-eight million, eight hundred fifty-four thousand, six hundred fifty-one".