65870222 has 12 divisors (see below), whose sum is σ = 108604608. Its totient is φ = 29940900.

The previous prime is 65870221. The next prime is 65870237. The reversal of 65870222 is 22207856.

It is a super-2 number, since 2×65870222² = 8677772292658568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65870221) 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, 135854 + ... + 136337.

It is an arithmetic number, because the mean of its divisors is an integer number (9050384).

Almost surely, 2^65870222 is an apocalyptic number.

65870222 is a deficient number, since it is larger than the sum of its proper divisors (42734386).

65870222 is a wasteful number, since it uses less digits than its factorization.

65870222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272215 (or 272204 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 65870222 is about 8116.0471905972. The cubic root of 65870222 is about 403.8589474256.

The spelling of 65870222 in words is "sixty-five million, eight hundred seventy thousand, two hundred twenty-two".