7290685 has 8 divisors (see below), whose sum is σ = 8836056. Its totient is φ = 5774400.

The previous prime is 7290653. The next prime is 7290691. The reversal of 7290685 is 5860927.

It can be written as a sum of positive squares in 4 ways, for example, as 2424249 + 4866436 = 1557^2 + 2206^2 .

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

It is not a de Polignac number, because 7290685 - 2⁵ = 7290653 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6714 + ... + 7723.

It is an arithmetic number, because the mean of its divisors is an integer number (1104507).

Almost surely, 2^7290685 is an apocalyptic number.

It is an amenable number.

7290685 is a deficient number, since it is larger than the sum of its proper divisors (1545371).

7290685 is a wasteful number, since it uses less digits than its factorization.

7290685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14543.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 7290685 is about 2700.1268488721. The cubic root of 7290685 is about 193.9051951133.

The spelling of 7290685 in words is "seven million, two hundred ninety thousand, six hundred eighty-five".