69669328 has 10 divisors (see below), whose sum is σ = 134984354. Its totient is φ = 34834656.

The previous prime is 69669319. The next prime is 69669329. The reversal of 69669328 is 82396696.

It can be written as a sum of positive squares in only one way, i.e., 57335184 + 12334144 = 7572^2 + 3512^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69669329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2177151 + ... + 2177182.

Almost surely, 2^69669328 is an apocalyptic number.

It is an amenable number.

69669328 is a deficient number, since it is larger than the sum of its proper divisors (65315026).

69669328 is a wasteful number, since it uses less digits than its factorization.

69669328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354341 (or 4354335 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 69669328 is about 8346.8154406336. The cubic root of 69669328 is about 411.4785560780.

The spelling of 69669328 in words is "sixty-nine million, six hundred sixty-nine thousand, three hundred twenty-eight".