28932116 has 6 divisors (see below), whose sum is σ = 50631210. Its totient is φ = 14466056.

The previous prime is 28932097. The next prime is 28932121. The reversal of 28932116 is 61123982.

28932116 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 14899600 + 14032516 = 3860^2 + 3746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3616511 + ... + 3616518.

It is an arithmetic number, because the mean of its divisors is an integer number (8438535).

Almost surely, 2^28932116 is an apocalyptic number.

It is an amenable number.

28932116 is a deficient number, since it is larger than the sum of its proper divisors (21699094).

28932116 is a wasteful number, since it uses less digits than its factorization.

28932116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233033 (or 7233031 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 28932116 is about 5378.8582431590. The cubic root of 28932116 is about 306.9917698070.

The spelling of 28932116 in words is "twenty-eight million, nine hundred thirty-two thousand, one hundred sixteen".