69778652 has 12 divisors (see below), whose sum is σ = 122179680. Its totient is φ = 34870176.

The previous prime is 69778649. The next prime is 69778661. The reversal of 69778652 is 25687796.

It is a self number, because there is not a number n which added to its sum of digits gives 69778652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6224 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (10181640).

Almost surely, 2^69778652 is an apocalyptic number.

It is an amenable number.

69778652 is a deficient number, since it is larger than the sum of its proper divisors (52401028).

69778652 is a wasteful number, since it uses less digits than its factorization.

69778652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580 (or 9578 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 69778652 is about 8353.3617184939. The cubic root of 69778652 is about 411.6936721308.

The spelling of 69778652 in words is "sixty-nine million, seven hundred seventy-eight thousand, six hundred fifty-two".