28655654 has 16 divisors (see below), whose sum is σ = 46401120. Its totient is φ = 13231680.

The previous prime is 28655647. The next prime is 28655657. The reversal of 28655654 is 45655682.

It is a super-2 number, since 2×28655654² = 1642293012335432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28655657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9407 + ... + 12074.

It is an arithmetic number, because the mean of its divisors is an integer number (2900070).

Almost surely, 2^28655654 is an apocalyptic number.

28655654 is a deficient number, since it is larger than the sum of its proper divisors (17745466).

28655654 is a wasteful number, since it uses less digits than its factorization.

28655654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21535.

The product of its digits is 288000, while the sum is 41.

The square root of 28655654 is about 5353.0976079276. The cubic root of 28655654 is about 306.0108145465.

The spelling of 28655654 in words is "twenty-eight million, six hundred fifty-five thousand, six hundred fifty-four".