7769997 has 12 divisors (see below), whose sum is σ = 11408124. Its totient is φ = 5094720.

The previous prime is 7769947. The next prime is 7770001. The reversal of 7769997 is 7999677.

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 6456681 = 1146^2 + 2541^2 .

It is not a de Polignac number, because 7769997 - 2¹⁸ = 7507853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7769947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6528 + ... + 7625.

It is an arithmetic number, because the mean of its divisors is an integer number (950677).

Almost surely, 2^7769997 is an apocalyptic number.

It is an amenable number.

7769997 is a deficient number, since it is larger than the sum of its proper divisors (3638127).

7769997 is a wasteful number, since it uses less digits than its factorization.

7769997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14220 (or 14217 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 54.

The square root of 7769997 is about 2787.4714348312. The cubic root of 7769997 is about 198.0646406638.

The spelling of 7769997 in words is "seven million, seven hundred sixty-nine thousand, nine hundred ninety-seven".