69407669 has 4 divisors (see below), whose sum is σ = 69429996. Its totient is φ = 69385344.

The previous prime is 69407647. The next prime is 69407713. The reversal of 69407669 is 96670496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39212644 + 30195025 = 6262^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 69407669 - 2¹² = 69403573 is a prime.

It is a super-2 number, since 2×69407669² = 9634849032027122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69407869) 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, 5564 + ... + 13029.

It is an arithmetic number, because the mean of its divisors is an integer number (17357499).

Almost surely, 2^69407669 is an apocalyptic number.

It is an amenable number.

69407669 is a deficient number, since it is larger than the sum of its proper divisors (22327).

69407669 is a wasteful number, since it uses less digits than its factorization.

69407669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22326.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 69407669 is about 8331.1265144637. The cubic root of 69407669 is about 410.9627760740.

The spelling of 69407669 in words is "sixty-nine million, four hundred seven thousand, six hundred sixty-nine".