11977807 has 2 divisors, whose sum is σ = 11977808. Its totient is φ = 11977806.

The previous prime is 11977799. The next prime is 11977817. The reversal of 11977807 is 70877911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11977807 - 2³ = 11977799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11977807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11977817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5988903 + 5988904.

It is an arithmetic number, because the mean of its divisors is an integer number (5988904).

Almost surely, 2^11977807 is an apocalyptic number.

11977807 is a deficient number, since it is larger than the sum of its proper divisors (1).

11977807 is an equidigital number, since it uses as much as digits as its factorization.

11977807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 40.

The square root of 11977807 is about 3460.8968490841. The cubic root of 11977807 is about 228.8016245076.

The spelling of 11977807 in words is "eleven million, nine hundred seventy-seven thousand, eight hundred seven".