28953924 has 24 divisors (see below), whose sum is σ = 71533728. Its totient is φ = 9083520.

The previous prime is 28953923. The next prime is 28953961. The reversal of 28953924 is 42935982.

It is not an unprimeable number, because it can be changed into a prime (28953923) 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 7 ways as a sum of consecutive naturals, for example, 70762 + ... + 71169.

It is an arithmetic number, because the mean of its divisors is an integer number (2980572).

Almost surely, 2^28953924 is an apocalyptic number.

It is an amenable number.

28953924 is an abundant number, since it is smaller than the sum of its proper divisors (42579804).

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

28953924 is a wasteful number, since it uses less digits than its factorization.

28953924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141955 (or 141953 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 28953924 is about 5380.8850573117. The cubic root of 28953924 is about 307.0688835941.

The spelling of 28953924 in words is "twenty-eight million, nine hundred fifty-three thousand, nine hundred twenty-four".