11797977 has 4 divisors (see below), whose sum is σ = 15730640. Its totient is φ = 7865316.

The previous prime is 11797967. The next prime is 11797979. The reversal of 11797977 is 77979711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11797977 - 2⁶ = 11797913 is a prime.

It is a super-2 number, since 2×11797977² = 278384522585058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11797979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1966327 + ... + 1966332.

It is an arithmetic number, because the mean of its divisors is an integer number (3932660).

Almost surely, 2^11797977 is an apocalyptic number.

It is an amenable number.

11797977 is a deficient number, since it is larger than the sum of its proper divisors (3932663).

11797977 is an equidigital number, since it uses as much as digits as its factorization.

11797977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932662.

The product of its digits is 194481, while the sum is 48.

The square root of 11797977 is about 3434.8183358076. The cubic root of 11797977 is about 227.6508004733.

The spelling of 11797977 in words is "eleven million, seven hundred ninety-seven thousand, nine hundred seventy-seven".