7697661 has 8 divisors (see below), whose sum is σ = 10277760. Its totient is φ = 5124672.

The previous prime is 7697653. The next prime is 7697693. The reversal of 7697661 is 1667967.

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

It is not a de Polignac number, because 7697661 - 2³ = 7697653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7697611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (1284720).

Almost surely, 2^7697661 is an apocalyptic number.

It is an amenable number.

7697661 is a deficient number, since it is larger than the sum of its proper divisors (2580099).

7697661 is a wasteful number, since it uses less digits than its factorization.

7697661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555.

The product of its digits is 95256, while the sum is 42.

The square root of 7697661 is about 2774.4658945462. The cubic root of 7697661 is about 197.4480854844.

The spelling of 7697661 in words is "seven million, six hundred ninety-seven thousand, six hundred sixty-one".