7691669 has 2 divisors, whose sum is σ = 7691670. Its totient is φ = 7691668.

The previous prime is 7691659. The next prime is 7691707. The reversal of 7691669 is 9661967.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 18769 = 2770^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 7691669 - 2¹² = 7687573 is a prime.

It is a super-2 number, since 2×7691669² = 118323544011122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7691639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3845834 + 3845835.

It is an arithmetic number, because the mean of its divisors is an integer number (3845835).

Almost surely, 2^7691669 is an apocalyptic number.

It is an amenable number.

7691669 is a deficient number, since it is larger than the sum of its proper divisors (1).

7691669 is an equidigital number, since it uses as much as digits as its factorization.

7691669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 7691669 is about 2773.3858368428. The cubic root of 7691669 is about 197.3968397859.

The spelling of 7691669 in words is "seven million, six hundred ninety-one thousand, six hundred sixty-nine".