11955977 has 8 divisors (see below), whose sum is σ = 13144032. Its totient is φ = 10784800.

The previous prime is 11955973. The next prime is 11955989. The reversal of 11955977 is 77955911.

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

It is a cyclic number.

It is not a de Polignac number, because 11955977 - 2² = 11955973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11955973) 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 in 7 ways as a sum of consecutive naturals, for example, 2708 + ... + 5589.

It is an arithmetic number, because the mean of its divisors is an integer number (1643004).

Almost surely, 2^11955977 is an apocalyptic number.

It is an amenable number.

11955977 is a deficient number, since it is larger than the sum of its proper divisors (1188055).

11955977 is a wasteful number, since it uses less digits than its factorization.

11955977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439.

The product of its digits is 99225, while the sum is 44.

The square root of 11955977 is about 3457.7416039953. The cubic root of 11955977 is about 228.6625401464.

The spelling of 11955977 in words is "eleven million, nine hundred fifty-five thousand, nine hundred seventy-seven".