7089890 has 8 divisors (see below), whose sum is σ = 12761820. Its totient is φ = 2835952.

The previous prime is 7089889. The next prime is 7089893. The reversal of 7089890 is 989807.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 683929 = 2531^2 + 827^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7089893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354485 + ... + 354504.

Almost surely, 2^7089890 is an apocalyptic number.

7089890 is a deficient number, since it is larger than the sum of its proper divisors (5671930).

7089890 is a wasteful number, since it uses less digits than its factorization.

7089890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708996.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 7089890 is about 2662.6847353752. The cubic root of 7089890 is about 192.1084637446.

The spelling of 7089890 in words is "seven million, eighty-nine thousand, eight hundred ninety".