7687693 has 6 divisors (see below), whose sum is σ = 8289834. Its totient is φ = 7087104.

The previous prime is 7687663. The next prime is 7687699. The reversal of 7687693 is 3967867.

It can be written as a sum of positive squares in 3 ways, for example, as 59049 + 7628644 = 243^2 + 2762^2 .

It is not a de Polignac number, because 7687693 - 2⁹ = 7687181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9613 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (1381639).

Almost surely, 2^7687693 is an apocalyptic number.

It is an amenable number.

7687693 is a deficient number, since it is larger than the sum of its proper divisors (602141).

7687693 is an frugal number, since it uses more digits than its factorization.

7687693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 782 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 7687693 is about 2772.6689308318. The cubic root of 7687693 is about 197.3628209399.

The spelling of 7687693 in words is "seven million, six hundred eighty-seven thousand, six hundred ninety-three".