7666969 has 4 divisors (see below), whose sum is σ = 7830144. Its totient is φ = 7503796.

The previous prime is 7666913. The next prime is 7666973. The reversal of 7666969 is 9696667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7666969 is a prime.

It is a super-2 number, since 2×7666969² = 117564827293922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7666909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81517 + ... + 81610.

It is an arithmetic number, because the mean of its divisors is an integer number (1957536).

Almost surely, 2^7666969 is an apocalyptic number.

It is an amenable number.

7666969 is a deficient number, since it is larger than the sum of its proper divisors (163175).

7666969 is a wasteful number, since it uses less digits than its factorization.

7666969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163174.

The product of its digits is 734832, while the sum is 49.

The square root of 7666969 is about 2768.9292154188. The cubic root of 7666969 is about 197.1853152419.

The spelling of 7666969 in words is "seven million, six hundred sixty-six thousand, nine hundred sixty-nine".