7001818 has 8 divisors (see below), whose sum is σ = 10864980. Its totient is φ = 3380160.

The previous prime is 7001803. The next prime is 7001831. The reversal of 7001818 is 8181007.

It can be written as a sum of positive squares in 2 ways, for example, as 6215049 + 786769 = 2493^2 + 887^2 .

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

7001818 is a modest number, since divided by 1818 gives 700 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 7001792 and 7001801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60303 + ... + 60418.

Almost surely, 2^7001818 is an apocalyptic number.

7001818 is a deficient number, since it is larger than the sum of its proper divisors (3863162).

7001818 is a wasteful number, since it uses less digits than its factorization.

7001818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120752.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 7001818 is about 2646.0948584660. The cubic root of 7001818 is about 191.3096773623.

The spelling of 7001818 in words is "seven million, one thousand, eight hundred eighteen".