28734924 has 24 divisors (see below), whose sum is σ = 67174128. Its totient is φ = 9560320.

The previous prime is 28734919. The next prime is 28734929. The reversal of 28734924 is 42943782.

It is an interprime number because it is at equal distance from previous prime (28734919) and next prime (28734929).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28734929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5464 + ... + 9344.

It is an arithmetic number, because the mean of its divisors is an integer number (2798922).

Almost surely, 2^28734924 is an apocalyptic number.

It is an amenable number.

28734924 is an abundant number, since it is smaller than the sum of its proper divisors (38439204).

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

28734924 is a wasteful number, since it uses less digits than its factorization.

28734924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4503 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 28734924 is about 5360.4966187845. The cubic root of 28734924 is about 306.2927268444.

The spelling of 28734924 in words is "twenty-eight million, seven hundred thirty-four thousand, nine hundred twenty-four".