78068770 has 16 divisors (see below), whose sum is σ = 151333560. Its totient is φ = 28825344.

The previous prime is 78068761. The next prime is 78068791. The reversal of 78068770 is 7786087.

It can be written as a sum of positive squares in 4 ways, for example, as 34257609 + 43811161 = 5853^2 + 6619^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300135 + ... + 300394.

Almost surely, 2^78068770 is an apocalyptic number.

78068770 is a deficient number, since it is larger than the sum of its proper divisors (73264790).

78068770 is a wasteful number, since it uses less digits than its factorization.

78068770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600549.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 78068770 is about 8835.6533431320. The cubic root of 78068770 is about 427.3913999759.

The spelling of 78068770 in words is "seventy-eight million, sixty-eight thousand, seven hundred seventy".