7008861 has 4 divisors (see below), whose sum is σ = 9345152. Its totient is φ = 4672572.

The previous prime is 7008857. The next prime is 7008887. The reversal of 7008861 is 1688007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1688007 = 3 ⋅562669.

It is not a de Polignac number, because 7008861 - 2² = 7008857 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

7008861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7008851) 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, 1168141 + ... + 1168146.

It is an arithmetic number, because the mean of its divisors is an integer number (2336288).

Almost surely, 2^7008861 is an apocalyptic number.

It is an amenable number.

7008861 is a deficient number, since it is larger than the sum of its proper divisors (2336291).

7008861 is a wasteful number, since it uses less digits than its factorization.

7008861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336290.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 7008861 is about 2647.4253530553. The cubic root of 7008861 is about 191.3738008293.

The spelling of 7008861 in words is "seven million, eight thousand, eight hundred sixty-one".