70878222 has 12 divisors (see below), whose sum is σ = 153569520. Its totient is φ = 23626068.

The previous prime is 70878221. The next prime is 70878239. The reversal of 70878222 is 22287807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1968822 + ... + 1968857.

It is an arithmetic number, because the mean of its divisors is an integer number (12797460).

Almost surely, 2^70878222 is an apocalyptic number.

70878222 is an abundant number, since it is smaller than the sum of its proper divisors (82691298).

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

70878222 is a wasteful number, since it uses less digits than its factorization.

70878222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937687 (or 3937684 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 70878222 is about 8418.9204771158. The cubic root of 70878222 is about 413.8448974406.

The spelling of 70878222 in words is "seventy million, eight hundred seventy-eight thousand, two hundred twenty-two".