28923748 has 24 divisors (see below), whose sum is σ = 58239104. Its totient is φ = 12312000.

The previous prime is 28923709. The next prime is 28923779. The reversal of 28923748 is 84732982.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808 + ... + 7648.

Almost surely, 2^28923748 is an apocalyptic number.

28923748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28923748 is an abundant number, since it is smaller than the sum of its proper divisors (29315356).

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

28923748 is a wasteful number, since it uses less digits than its factorization.

28923748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003 (or 7001 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 28923748 is about 5378.0803266593. The cubic root of 28923748 is about 306.9621700036.

The spelling of 28923748 in words is "twenty-eight million, nine hundred twenty-three thousand, seven hundred forty-eight".