7720701 has 8 divisors (see below), whose sum is σ = 10343904. Its totient is φ = 5122320.

The previous prime is 7720697. The next prime is 7720717. The reversal of 7720701 is 1070277.

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

It is not a de Polignac number, because 7720701 - 2² = 7720697 is a prime.

7720701 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5466 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (1292988).

Almost surely, 2^7720701 is an apocalyptic number.

It is an amenable number.

7720701 is a deficient number, since it is larger than the sum of its proper divisors (2623203).

7720701 is a wasteful number, since it uses less digits than its factorization.

7720701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411.

The product of its (nonzero) digits is 686, while the sum is 24.

The square root of 7720701 is about 2778.6149427368. The cubic root of 7720701 is about 197.6448843413.

Adding to 7720701 its reverse (1070277), we get a palindrome (8790978).

The spelling of 7720701 in words is "seven million, seven hundred twenty thousand, seven hundred one".