7717201 has 8 divisors (see below), whose sum is σ = 8392680. Its totient is φ = 7066368.

The previous prime is 7717189. The next prime is 7717207. The reversal of 7717201 is 1027177.

It can be written as a sum of positive squares in 4 ways, for example, as 5760000 + 1957201 = 2400^2 + 1399^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7717201 - 2⁹ = 7716689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7717207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5506 + ... + 6763.

It is an arithmetic number, because the mean of its divisors is an integer number (1049085).

Almost surely, 2^7717201 is an apocalyptic number.

It is an amenable number.

7717201 is a deficient number, since it is larger than the sum of its proper divisors (675479).

7717201 is a wasteful number, since it uses less digits than its factorization.

7717201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 7717201 is about 2777.9850611549. The cubic root of 7717201 is about 197.6150139253.

The spelling of 7717201 in words is "seven million, seven hundred seventeen thousand, two hundred one".