11977288 has 8 divisors (see below), whose sum is σ = 22457430. Its totient is φ = 5988640.

The previous prime is 11977267. The next prime is 11977291. The reversal of 11977288 is 88277911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9012004 + 2965284 = 3002^2 + 1722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748573 + ... + 748588.

Almost surely, 2^11977288 is an apocalyptic number.

It is an amenable number.

11977288 is a deficient number, since it is larger than the sum of its proper divisors (10480142).

11977288 is a wasteful number, since it uses less digits than its factorization.

11977288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497167 (or 1497163 counting only the distinct ones).

The product of its digits is 56448, while the sum is 43.

The square root of 11977288 is about 3460.8218677071. The cubic root of 11977288 is about 228.7983197914.

The spelling of 11977288 in words is "eleven million, nine hundred seventy-seven thousand, two hundred eighty-eight".