12197764 has 6 divisors (see below), whose sum is σ = 21346094. Its totient is φ = 6098880.

The previous prime is 12197749. The next prime is 12197821. The reversal of 12197764 is 46779121.

12197764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11276164 + 921600 = 3358^2 + 960^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1524717 + ... + 1524724.

Almost surely, 2^12197764 is an apocalyptic number.

It is an amenable number.

12197764 is a deficient number, since it is larger than the sum of its proper divisors (9148330).

12197764 is a wasteful number, since it uses less digits than its factorization.

12197764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049445 (or 3049443 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 12197764 is about 3492.5297421783. The cubic root of 12197764 is about 230.1936868787.

The spelling of 12197764 in words is "twelve million, one hundred ninety-seven thousand, seven hundred sixty-four".