28534961 has 8 divisors (see below), whose sum is σ = 35120064. Its totient is φ = 22577040.

The previous prime is 28534931. The next prime is 28534963. The reversal of 28534961 is 16943582.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28534961 - 2¹⁰ = 28533937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28534963) 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 in 7 ways as a sum of consecutive naturals, for example, 156695 + ... + 156876.

It is an arithmetic number, because the mean of its divisors is an integer number (4390008).

Almost surely, 2^28534961 is an apocalyptic number.

It is an amenable number.

28534961 is a deficient number, since it is larger than the sum of its proper divisors (6585103).

28534961 is a wasteful number, since it uses less digits than its factorization.

28534961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313591.

The product of its digits is 51840, while the sum is 38.

The square root of 28534961 is about 5341.8125201096. The cubic root of 28534961 is about 305.5805872067.

The spelling of 28534961 in words is "twenty-eight million, five hundred thirty-four thousand, nine hundred sixty-one".