7089945 has 16 divisors (see below), whose sum is σ = 11941440. Its totient is φ = 3582144.

The previous prime is 7089941. The next prime is 7089991. The reversal of 7089945 is 5499807.

7089945 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7089945 - 2² = 7089941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7089897 and 7089906.

It is not an unprimeable number, because it can be changed into a prime (7089941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12154 + ... + 12723.

It is an arithmetic number, because the mean of its divisors is an integer number (746340).

Almost surely, 2^7089945 is an apocalyptic number.

It is an amenable number.

7089945 is a deficient number, since it is larger than the sum of its proper divisors (4851495).

7089945 is a wasteful number, since it uses less digits than its factorization.

7089945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24904.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 7089945 is about 2662.6950632771. The cubic root of 7089945 is about 192.1089605054.

The spelling of 7089945 in words is "seven million, eighty-nine thousand, nine hundred forty-five".