7089745 has 8 divisors (see below), whose sum is σ = 9162216. Its totient is φ = 5235456.

The previous prime is 7089743. The next prime is 7089749. The reversal of 7089745 is 5479807.

It can be written as a sum of positive squares in 4 ways, for example, as 77841 + 7011904 = 279^2 + 2648^2 .

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 7089745 - 2¹ = 7089743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7089698 and 7089707.

It is not an unprimeable number, because it can be changed into a prime (7089743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54472 + ... + 54601.

It is an arithmetic number, because the mean of its divisors is an integer number (1145277).

Almost surely, 2^7089745 is an apocalyptic number.

It is an amenable number.

7089745 is a deficient number, since it is larger than the sum of its proper divisors (2072471).

7089745 is a wasteful number, since it uses less digits than its factorization.

7089745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109091.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 7089745 is about 2662.6575070782. The cubic root of 7089745 is about 192.1071540902.

The spelling of 7089745 in words is "seven million, eighty-nine thousand, seven hundred forty-five".