28611654 has 8 divisors (see below), whose sum is σ = 57223320. Its totient is φ = 9537216.

The previous prime is 28611601. The next prime is 28611659. The reversal of 28611654 is 45611682.

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

28611654 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28611659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384299 + ... + 2384310.

It is an arithmetic number, because the mean of its divisors is an integer number (7152915).

Almost surely, 2^28611654 is an apocalyptic number.

28611654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28611654 is a wasteful number, since it uses less digits than its factorization.

28611654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768614.

The product of its digits is 11520, while the sum is 33.

The square root of 28611654 is about 5348.9862590962. The cubic root of 28611654 is about 305.8541104725.

The spelling of 28611654 in words is "twenty-eight million, six hundred eleven thousand, six hundred fifty-four".