12064819 has 4 divisors (see below), whose sum is σ = 12992896. Its totient is φ = 11136744.

The previous prime is 12064799. The next prime is 12064879. The reversal of 12064819 is 91846021.

12064819 = T₇₆₇ + T₇₆₈ + ... + T₈₀₅.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12064819 - 2⁷ = 12064691 is a prime.

It is a super-2 number, since 2×12064819² = 291119715005522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12064879) 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, 464019 + ... + 464044.

It is an arithmetic number, because the mean of its divisors is an integer number (3248224).

Almost surely, 2^12064819 is an apocalyptic number.

12064819 is a deficient number, since it is larger than the sum of its proper divisors (928077).

12064819 is an equidigital number, since it uses as much as digits as its factorization.

12064819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928076.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12064819 is about 3473.4448318636. Note that the first 3 decimals coincide. The cubic root of 12064819 is about 229.3543264783.

The spelling of 12064819 in words is "twelve million, sixty-four thousand, eight hundred nineteen".