7820706 has 16 divisors (see below), whose sum is σ = 15974784. Its totient is φ = 2551344.

The previous prime is 7820699. The next prime is 7820719. The reversal of 7820706 is 6070287.

It is a super-2 number, since 2×7820706² = 122326884676872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 13585 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (998424).

Almost surely, 2^7820706 is an apocalyptic number.

7820706 is an abundant number, since it is smaller than the sum of its proper divisors (8154078).

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

7820706 is a wasteful number, since it uses less digits than its factorization.

7820706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27785.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 7820706 is about 2796.5525205152. The cubic root of 7820706 is about 198.4945803223.

The spelling of 7820706 in words is "seven million, eight hundred twenty thousand, seven hundred six".