28662164 has 6 divisors (see below), whose sum is σ = 50158794. Its totient is φ = 14331080.

The previous prime is 28662143. The next prime is 28662167. The reversal of 28662164 is 46126682.

It can be written as a sum of positive squares in only one way, i.e., 24581764 + 4080400 = 4958^2 + 2020^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582767 + ... + 3582774.

It is an arithmetic number, because the mean of its divisors is an integer number (8359799).

Almost surely, 2^28662164 is an apocalyptic number.

It is an amenable number.

28662164 is a deficient number, since it is larger than the sum of its proper divisors (21496630).

28662164 is a wasteful number, since it uses less digits than its factorization.

28662164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165545 (or 7165543 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 28662164 is about 5353.7056325502. The cubic root of 28662164 is about 306.0339860012.

The spelling of 28662164 in words is "twenty-eight million, six hundred sixty-two thousand, one hundred sixty-four".