28734632 has 16 divisors (see below), whose sum is σ = 54029760. Its totient is φ = 14326704.

The previous prime is 28734583. The next prime is 28734637. The reversal of 28734632 is 23643782.

It is a junction number, because it is equal to n+sod(n) for n = 28734592 and 28734601.

It is not an unprimeable number, because it can be changed into a prime (28734637) 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 3 ways as a sum of consecutive naturals, for example, 1958 + ... + 7829.

It is an arithmetic number, because the mean of its divisors is an integer number (3376860).

Almost surely, 2^28734632 is an apocalyptic number.

It is an amenable number.

28734632 is a deficient number, since it is larger than the sum of its proper divisors (25295128).

28734632 is a wasteful number, since it uses less digits than its factorization.

28734632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10160 (or 10156 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 28734632 is about 5360.4693824328. The cubic root of 28734632 is about 306.2916893406.

The spelling of 28734632 in words is "twenty-eight million, seven hundred thirty-four thousand, six hundred thirty-two".