28797024 has 24 divisors (see below), whose sum is σ = 75592440. Its totient is φ = 9598976.

The previous prime is 28797023. The next prime is 28797053. The reversal of 28797024 is 42079782.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28797023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149889 + ... + 150080.

It is an arithmetic number, because the mean of its divisors is an integer number (3149685).

Almost surely, 2^28797024 is an apocalyptic number.

28797024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28797024 is an abundant number, since it is smaller than the sum of its proper divisors (46795416).

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

28797024 is a wasteful number, since it uses less digits than its factorization.

28797024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299982 (or 299974 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 28797024 is about 5366.2858664070. The cubic root of 28797024 is about 306.5132145527.

The spelling of 28797024 in words is "twenty-eight million, seven hundred ninety-seven thousand, twenty-four".