78069356 has 12 divisors (see below), whose sum is σ = 136786440. Its totient is φ = 38987520.

The previous prime is 78069353. The next prime is 78069359. The reversal of 78069356 is 65396087.

It is an interprime number because it is at equal distance from previous prime (78069353) and next prime (78069359).

It is not an unprimeable number, because it can be changed into a prime (78069353) 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, 7925 + ... + 14796.

It is an arithmetic number, because the mean of its divisors is an integer number (11398870).

Almost surely, 2^78069356 is an apocalyptic number.

It is an amenable number.

78069356 is a deficient number, since it is larger than the sum of its proper divisors (58717084).

78069356 is a wasteful number, since it uses less digits than its factorization.

78069356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23584 (or 23582 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 78069356 is about 8835.6865041716. The cubic root of 78069356 is about 427.3924693353.

The spelling of 78069356 in words is "seventy-eight million, sixty-nine thousand, three hundred fifty-six".