28934712 has 64 divisors (see below), whose sum is σ = 81261600. Its totient is φ = 9538560.

The previous prime is 28934707. The next prime is 28934723. The reversal of 28934712 is 21743982.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20262 + ... + 21642.

Almost surely, 2^28934712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28934712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40630800).

28934712 is an abundant number, since it is smaller than the sum of its proper divisors (52326888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28934712 is a wasteful number, since it uses less digits than its factorization.

28934712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493 (or 1483 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 28934712 is about 5379.0995528992. The cubic root of 28934712 is about 307.0009513776. Note that the first 3 decimals are identical.

It can be divided in two parts, 28934 and 712, that added together give a triangular number (29646 = T₂₄₃).

The spelling of 28934712 in words is "twenty-eight million, nine hundred thirty-four thousand, seven hundred twelve".