28534737 has 16 divisors (see below), whose sum is σ = 47434752. Its totient is φ = 14823120.

The previous prime is 28534691. The next prime is 28534747. The reversal of 28534737 is 73743582.

It is not a de Polignac number, because 28534737 - 2⁷ = 28534609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28534695 and 28534704.

It is not an unprimeable number, because it can be changed into a prime (28534747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61533 + ... + 61994.

It is an arithmetic number, because the mean of its divisors is an integer number (2964672).

Almost surely, 2^28534737 is an apocalyptic number.

It is an amenable number.

28534737 is a deficient number, since it is larger than the sum of its proper divisors (18900015).

28534737 is a wasteful number, since it uses less digits than its factorization.

28534737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123548.

The product of its digits is 141120, while the sum is 39.

The square root of 28534737 is about 5341.7915534023. The cubic root of 28534737 is about 305.5797876001.

The spelling of 28534737 in words is "twenty-eight million, five hundred thirty-four thousand, seven hundred thirty-seven".