1196220687 has 4 divisors (see below), whose sum is σ = 1594960920. Its totient is φ = 797480456.

The previous prime is 1196220671. The next prime is 1196220703. The reversal of 1196220687 is 7860226911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7860226911 = 3 ⋅2620075637.

It is an interprime number because it is at equal distance from previous prime (1196220671) and next prime (1196220703).

It is a cyclic number.

It is not a de Polignac number, because 1196220687 - 2⁴ = 1196220671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1196220637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199370112 + ... + 199370117.

It is an arithmetic number, because the mean of its divisors is an integer number (398740230).

Almost surely, 2^1196220687 is an apocalyptic number.

1196220687 is a deficient number, since it is larger than the sum of its proper divisors (398740233).

1196220687 is an equidigital number, since it uses as much as digits as its factorization.

1196220687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398740232.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1196220687 is about 34586.4234490934. The cubic root of 1196220687 is about 1061.5418072669.

The spelling of 1196220687 in words is "one billion, one hundred ninety-six million, two hundred twenty thousand, six hundred eighty-seven".