1272006886 has 8 divisors (see below), whose sum is σ = 1911318840. Its totient is φ = 634900608.

The previous prime is 1272006871. The next prime is 1272006913. The reversal of 1272006886 is 6886002721.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549976 + ... + 552283.

It is an arithmetic number, because the mean of its divisors is an integer number (238914855).

Almost surely, 2^1272006886 is an apocalyptic number.

1272006886 is a deficient number, since it is larger than the sum of its proper divisors (639311954).

1272006886 is a wasteful number, since it uses less digits than its factorization.

1272006886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102838.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1272006886 is about 35665.2055370497. The cubic root of 1272006886 is about 1083.5022581762.

The spelling of 1272006886 in words is "one billion, two hundred seventy-two million, six thousand, eight hundred eighty-six".