7720606 has 4 divisors (see below), whose sum is σ = 11580912. Its totient is φ = 3860302.

The previous prime is 7720597. The next prime is 7720619. The reversal of 7720606 is 6060277.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930150 + ... + 1930153.

It is an arithmetic number, because the mean of its divisors is an integer number (2895228).

Almost surely, 2^7720606 is an apocalyptic number.

7720606 is a deficient number, since it is larger than the sum of its proper divisors (3860306).

7720606 is a wasteful number, since it uses less digits than its factorization.

7720606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860305.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7720606 is about 2778.5978478362. The cubic root of 7720606 is about 197.6440736920.

The spelling of 7720606 in words is "seven million, seven hundred twenty thousand, six hundred six".