1223687706 has 8 divisors (see below), whose sum is σ = 2447375424. Its totient is φ = 407895900.

The previous prime is 1223687687. The next prime is 1223687713. The reversal of 1223687706 is 6077863221.

It is a sphenic number, since it is the product of 3 distinct primes.

1223687706 is an admirable number.

It is a super-4 number, since 4×1223687706⁴ (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101973970 + ... + 101973981.

It is an arithmetic number, because the mean of its divisors is an integer number (305921928).

Almost surely, 2^1223687706 is an apocalyptic number.

1223687706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1223687706 is a wasteful number, since it uses less digits than its factorization.

1223687706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203947956.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1223687706 is about 34981.2479194211. The cubic root of 1223687706 is about 1069.6052656403.

The spelling of 1223687706 in words is "one billion, two hundred twenty-three million, six hundred eighty-seven thousand, seven hundred six".