70656222 has 64 divisors (see below), whose sum is σ = 175279104. Its totient is φ = 18489600.

The previous prime is 70656221. The next prime is 70656227. The reversal of 70656222 is 22265607.

It is a self number, because there is not a number n which added to its sum of digits gives 70656222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70656221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82018 + ... + 82874.

It is an arithmetic number, because the mean of its divisors is an integer number (2738736).

Almost surely, 2^70656222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70656222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87639552).

70656222 is an abundant number, since it is smaller than the sum of its proper divisors (104622882).

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

70656222 is a wasteful number, since it uses less digits than its factorization.

70656222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 70656222 is about 8405.7255486960. The cubic root of 70656222 is about 413.4123731665.

The spelling of 70656222 in words is "seventy million, six hundred fifty-six thousand, two hundred twenty-two".