7001813 has 8 divisors (see below), whose sum is σ = 8617728. Its totient is φ = 5539824.

The previous prime is 7001803. The next prime is 7001831. The reversal of 7001813 is 3181007.

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 7001813 - 2²⁰ = 5953237 is a prime.

7001813 is a modest number, since divided by 1813 gives 7 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38381 + ... + 38562.

It is an arithmetic number, because the mean of its divisors is an integer number (1077216).

Almost surely, 2^7001813 is an apocalyptic number.

It is an amenable number.

7001813 is a deficient number, since it is larger than the sum of its proper divisors (1615915).

7001813 is a wasteful number, since it uses less digits than its factorization.

7001813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76963.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 7001813 is about 2646.0939136773. The cubic root of 7001813 is about 191.3096318242.

The spelling of 7001813 in words is "seven million, one thousand, eight hundred thirteen".