28447601 has 24 divisors (see below), whose sum is σ = 35663040. Its totient is φ = 22216896.

The previous prime is 28447577. The next prime is 28447603. The reversal of 28447601 is 10674482.

It is not a de Polignac number, because 28447601 - 2⁶ = 28447537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28447603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164351 + ... + 164523.

It is an arithmetic number, because the mean of its divisors is an integer number (1485960).

Almost surely, 2^28447601 is an apocalyptic number.

It is an amenable number.

28447601 is a deficient number, since it is larger than the sum of its proper divisors (7215439).

28447601 is a wasteful number, since it uses less digits than its factorization.

28447601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28447601 is about 5333.6292522072. The cubic root of 28447601 is about 305.2684226615.

The spelling of 28447601 in words is "twenty-eight million, four hundred forty-seven thousand, six hundred one".