7657969 has 12 divisors (see below), whose sum is σ = 8863120. Its totient is φ = 6593400.

The previous prime is 7657967. The next prime is 7657987. The reversal of 7657969 is 9697567.

It is not a de Polignac number, because 7657969 - 2¹ = 7657967 is a prime.

It is a super-2 number, since 2×7657969² = 117288978409922, which contains 22 as substring.

7657969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7657963) 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, 634 + ... + 3964.

Almost surely, 2^7657969 is an apocalyptic number.

It is an amenable number.

7657969 is a deficient number, since it is larger than the sum of its proper divisors (1205151).

7657969 is a wasteful number, since it uses less digits than its factorization.

7657969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372 (or 3361 counting only the distinct ones).

The product of its digits is 714420, while the sum is 49.

The square root of 7657969 is about 2767.3035612307. The cubic root of 7657969 is about 197.1081286032.

The spelling of 7657969 in words is "seven million, six hundred fifty-seven thousand, nine hundred sixty-nine".