69775969 has 8 divisors (see below), whose sum is σ = 71780328. Its totient is φ = 67777920.

The previous prime is 69775957. The next prime is 69776017. The reversal of 69775969 is 96957796.

It can be written as a sum of positive squares in 4 ways, for example, as 15311569 + 54464400 = 3913^2 + 7380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69775969 - 2⁷ = 69775841 is a prime.

It is a super-2 number, since 2×69775969² = 9737371699777922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69775949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29229 + ... + 31525.

It is an arithmetic number, because the mean of its divisors is an integer number (8972541).

Almost surely, 2^69775969 is an apocalyptic number.

It is an amenable number.

69775969 is a deficient number, since it is larger than the sum of its proper divisors (2004359).

69775969 is a wasteful number, since it uses less digits than its factorization.

69775969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its digits is 6429780, while the sum is 58.

The square root of 69775969 is about 8353.2011229229. The cubic root of 69775969 is about 411.6883955013.

The spelling of 69775969 in words is "sixty-nine million, seven hundred seventy-five thousand, nine hundred sixty-nine".