28625345 has 8 divisors (see below), whose sum is σ = 39257664. Its totient is φ = 19628784.

The previous prime is 28625341. The next prime is 28625347. The reversal of 28625345 is 54352682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28625345 - 2² = 28625341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 817867 = 28625345 / (2 + 8 + 6 + 2 + 5 + 3 + 4 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28625341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408899 + ... + 408968.

It is an arithmetic number, because the mean of its divisors is an integer number (4907208).

Almost surely, 2^28625345 is an apocalyptic number.

It is an amenable number.

28625345 is a deficient number, since it is larger than the sum of its proper divisors (10632319).

28625345 is an equidigital number, since it uses as much as digits as its factorization.

28625345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817879.

The product of its digits is 57600, while the sum is 35.

The square root of 28625345 is about 5350.2658812437. The cubic root of 28625345 is about 305.9028875768.

The spelling of 28625345 in words is "twenty-eight million, six hundred twenty-five thousand, three hundred forty-five".