28016654 has 4 divisors (see below), whose sum is σ = 42024984. Its totient is φ = 14008326.

The previous prime is 28016633. The next prime is 28016657. The reversal of 28016654 is 45661082.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28016654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28016657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7004162 + ... + 7004165.

It is an arithmetic number, because the mean of its divisors is an integer number (10506246).

Almost surely, 2^28016654 is an apocalyptic number.

28016654 is a deficient number, since it is larger than the sum of its proper divisors (14008330).

28016654 is a wasteful number, since it uses less digits than its factorization.

28016654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14008329.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28016654 is about 5293.0760432852. The cubic root of 28016654 is about 303.7190892467.

The spelling of 28016654 in words is "twenty-eight million, sixteen thousand, six hundred fifty-four".