78068572 has 12 divisors (see below), whose sum is σ = 137115160. Its totient is φ = 38892816.

The previous prime is 78068569. The next prime is 78068579. The reversal of 78068572 is 27586087.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78068579) 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, 34122 + ... + 36337.

Almost surely, 2^78068572 is an apocalyptic number.

It is an amenable number.

78068572 is a deficient number, since it is larger than the sum of its proper divisors (59046588).

78068572 is a wasteful number, since it uses less digits than its factorization.

78068572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70740 (or 70738 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 78068572 is about 8835.6421385206. The cubic root of 78068572 is about 427.3910386553.

The spelling of 78068572 in words is "seventy-eight million, sixty-eight thousand, five hundred seventy-two".