11977452 has 36 divisors (see below), whose sum is σ = 32058936. Its totient is φ = 3757440.

The previous prime is 11977451. The next prime is 11977519. The reversal of 11977452 is 25477911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11977451) 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 11 ways as a sum of consecutive naturals, for example, 9174 + ... + 10397.

It is an arithmetic number, because the mean of its divisors is an integer number (890526).

Almost surely, 2^11977452 is an apocalyptic number.

11977452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11977452 is an abundant number, since it is smaller than the sum of its proper divisors (20081484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11977452 is a wasteful number, since it uses less digits than its factorization.

11977452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19598 (or 19593 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 11977452 is about 3460.8455614199. The cubic root of 11977452 is about 228.7993640666.

It can be divided in two parts, 1197 and 7452, that added together give a square (8649 = 93²).

The spelling of 11977452 in words is "eleven million, nine hundred seventy-seven thousand, four hundred fifty-two".