969696969 has 4 divisors (see below), whose sum is σ = 1292929296. Its totient is φ = 646464644.

The previous prime is 969696941. The next prime is 969696989.

969696969 is nontrivially palindromic in base 10.

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 not a de Polignac number, because 969696969 - 2²⁰ = 968648393 is a prime.

It is a super-2 number, since 2×969696969² = 1880624423375573922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

969696969 is an undulating number in base 10.

It is not an unprimeable number, because it can be changed into a prime (969696929) 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, 161616159 + ... + 161616164.

It is an arithmetic number, because the mean of its divisors is an integer number (323232324).

Almost surely, 2^969696969 is an apocalyptic number.

It is an amenable number.

969696969 is a deficient number, since it is larger than the sum of its proper divisors (323232327).

969696969 is a wasteful number, since it uses less digits than its factorization.

969696969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323232326.

The product of its digits is 76527504, while the sum is 69.

The square root of 969696969 is about 31139.9577552700. The cubic root of 969696969 is about 989.7952060828.

The spelling of 969696969 in words is "nine hundred sixty-nine million, six hundred ninety-six thousand, nine hundred sixty-nine".