28375347 has 48 divisors (see below), whose sum is σ = 51242240. Its totient is φ = 13590720.

The previous prime is 28375343. The next prime is 28375349. The reversal of 28375347 is 74357382.

It is not a de Polignac number, because 28375347 - 2² = 28375343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (28375343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32604 + ... + 33462.

Almost surely, 2^28375347 is an apocalyptic number.

28375347 is a deficient number, since it is larger than the sum of its proper divisors (22866893).

28375347 is a wasteful number, since it uses less digits than its factorization.

28375347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 893 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 28375347 is about 5326.8515090999. The cubic root of 28375347 is about 305.0097533386.

The spelling of 28375347 in words is "twenty-eight million, three hundred seventy-five thousand, three hundred forty-seven".