28497600 has 126 divisors (see below), whose sum is σ = 101338380. Its totient is φ = 7595520.

The previous prime is 28497589. The next prime is 28497607. The reversal of 28497600 is 679482.

28497600 is a `hidden beast` number, since 2 + 8 + 49 + 7 + 600 = 666.

It is a super-2 number, since 2×28497600² = 1624226411520000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (28497607) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13411 + ... + 15389.

Almost surely, 2^28497600 is an apocalyptic number.

28497600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28497600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50669190).

28497600 is an abundant number, since it is smaller than the sum of its proper divisors (72840780).

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

28497600 is a wasteful number, since it uses less digits than its factorization.

28497600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 1989 counting only the distinct ones).

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

The square root of 28497600 is about 5338.3143406885. The cubic root of 28497600 is about 305.4471627777.

The spelling of 28497600 in words is "twenty-eight million, four hundred ninety-seven thousand, six hundred".