28737134 has 4 divisors (see below), whose sum is σ = 43105704. Its totient is φ = 14368566.

The previous prime is 28737133. The next prime is 28737151. The reversal of 28737134 is 43173782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43173782 = 2 ⋅21586891.

It is a junction number, because it is equal to n+sod(n) for n = 28737094 and 28737103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7184282 + ... + 7184285.

It is an arithmetic number, because the mean of its divisors is an integer number (10776426).

Almost surely, 2^28737134 is an apocalyptic number.

28737134 is a deficient number, since it is larger than the sum of its proper divisors (14368570).

28737134 is a wasteful number, since it uses less digits than its factorization.

28737134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14368569.

The product of its digits is 28224, while the sum is 35.

The square root of 28737134 is about 5360.7027524383. The cubic root of 28737134 is about 306.3005789570.

The spelling of 28737134 in words is "twenty-eight million, seven hundred thirty-seven thousand, one hundred thirty-four".