11747977 has 4 divisors (see below), whose sum is σ = 12126976. Its totient is φ = 11368980.

The previous prime is 11747971. The next prime is 11748031. The reversal of 11747977 is 77974711.

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 a cyclic number.

It is not a de Polignac number, because 11747977 - 2⁷ = 11747849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11747971) 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, 189453 + ... + 189514.

It is an arithmetic number, because the mean of its divisors is an integer number (3031744).

Almost surely, 2^11747977 is an apocalyptic number.

It is an amenable number.

11747977 is a deficient number, since it is larger than the sum of its proper divisors (378999).

11747977 is an equidigital number, since it uses as much as digits as its factorization.

11747977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378998.

The product of its digits is 86436, while the sum is 43.

The square root of 11747977 is about 3427.5322026204. The cubic root of 11747977 is about 227.3287492781.

The spelling of 11747977 in words is "eleven million, seven hundred forty-seven thousand, nine hundred seventy-seven".