1226956687 has 16 divisors (see below), whose sum is σ = 1349812224. Its totient is φ = 1106028000.

The previous prime is 1226956681. The next prime is 1226956699. The reversal of 1226956687 is 7866596221.

It is not a de Polignac number, because 1226956687 - 2¹¹ = 1226954639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226956681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833362 + ... + 834832.

It is an arithmetic number, because the mean of its divisors is an integer number (84363264).

Almost surely, 2^1226956687 is an apocalyptic number.

1226956687 is a deficient number, since it is larger than the sum of its proper divisors (122855537).

1226956687 is a wasteful number, since it uses less digits than its factorization.

1226956687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its digits is 2177280, while the sum is 52.

The square root of 1226956687 is about 35027.9415181652. The cubic root of 1226956687 is about 1070.5568729096.

The spelling of 1226956687 in words is "one billion, two hundred twenty-six million, nine hundred fifty-six thousand, six hundred eighty-seven".