7097813 has 8 divisors (see below), whose sum is σ = 7286328. Its totient is φ = 6911424.

The previous prime is 7097809. The next prime is 7097819. The reversal of 7097813 is 3187907.

It can be written as a sum of positive squares in 4 ways, for example, as 117649 + 6980164 = 343^2 + 2642^2 .

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 7097813 - 2² = 7097809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7097819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7895 + ... + 8747.

It is an arithmetic number, because the mean of its divisors is an integer number (910791).

Almost surely, 2^7097813 is an apocalyptic number.

It is an amenable number.

7097813 is a deficient number, since it is larger than the sum of its proper divisors (188515).

7097813 is a wasteful number, since it uses less digits than its factorization.

7097813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 7097813 is about 2664.1721040503. The cubic root of 7097813 is about 192.1799979401.

The spelling of 7097813 in words is "seven million, ninety-seven thousand, eight hundred thirteen".