12016997 has 4 divisors (see below), whose sum is σ = 12032160. Its totient is φ = 12001836.

The previous prime is 12016973. The next prime is 12017003. The reversal of 12016997 is 79961021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79961021 = 7 ⋅11423003.

It is a cyclic number.

It is not a de Polignac number, because 12016997 - 2¹⁴ = 12000613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016397) 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, 6323 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (3008040).

Almost surely, 2^12016997 is an apocalyptic number.

It is an amenable number.

12016997 is a deficient number, since it is larger than the sum of its proper divisors (15163).

12016997 is an equidigital number, since it uses as much as digits as its factorization.

12016997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 12016997 is about 3466.5540526581. The cubic root of 12016997 is about 229.0508903381.

The spelling of 12016997 in words is "twelve million, sixteen thousand, nine hundred ninety-seven".