70668078 has 32 divisors (see below), whose sum is σ = 153117216. Its totient is φ = 21614208.

The previous prime is 70668071. The next prime is 70668097. The reversal of 70668078 is 87086607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70668071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10876 + ... + 16112.

It is an arithmetic number, because the mean of its divisors is an integer number (4784913).

Almost surely, 2^70668078 is an apocalyptic number.

70668078 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70668078 is an abundant number, since it is smaller than the sum of its proper divisors (82449138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70668078 is a wasteful number, since it uses less digits than its factorization.

70668078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 70668078 is about 8406.4307527036. The cubic root of 70668078 is about 413.4354951829.

The spelling of 70668078 in words is "seventy million, six hundred sixty-eight thousand, seventy-eight".