2620806 has 8 divisors (see below), whose sum is σ = 5241624. Its totient is φ = 873600.

The previous prime is 2620741. The next prime is 2620811. The reversal of 2620806 is 6080262.

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

2620806 is an admirable number.

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, 218395 + ... + 218406.

It is an arithmetic number, because the mean of its divisors is an integer number (655203).

2^2620806 is an apocalyptic number.

2620806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2620806 is a wasteful number, since it uses less digits than its factorization.

2620806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436806.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2620806 is about 1618.8903607101. The cubic root of 2620806 is about 137.8727034488.

The spelling of 2620806 in words is "two million, six hundred twenty thousand, eight hundred six".