28589745 has 8 divisors (see below), whose sum is σ = 45743616. Its totient is φ = 15247856.

The previous prime is 28589741. The next prime is 28589749. The reversal of 28589745 is 54798582.

It is an interprime number because it is at equal distance from previous prime (28589741) and next prime (28589749).

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

It is a cyclic number.

It is not a de Polignac number, because 28589745 - 2² = 28589741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28589694 and 28589703.

It is not an unprimeable number, because it can be changed into a prime (28589741) 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, 952977 + ... + 953006.

It is an arithmetic number, because the mean of its divisors is an integer number (5717952).

Almost surely, 2^28589745 is an apocalyptic number.

It is an amenable number.

28589745 is a deficient number, since it is larger than the sum of its proper divisors (17153871).

28589745 is a wasteful number, since it uses less digits than its factorization.

28589745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905991.

The product of its digits is 806400, while the sum is 48.

The square root of 28589745 is about 5346.9379087474. The cubic root of 28589745 is about 305.7760226087.

The spelling of 28589745 in words is "twenty-eight million, five hundred eighty-nine thousand, seven hundred forty-five".