12001698 has 24 divisors (see below), whose sum is σ = 26372736. Its totient is φ = 3943800.

The previous prime is 12001697. The next prime is 12001709. The reversal of 12001698 is 89610021.

It is not an unprimeable number, because it can be changed into a prime (12001697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3418 + ... + 5973.

It is an arithmetic number, because the mean of its divisors is an integer number (1098864).

Almost surely, 2^12001698 is an apocalyptic number.

12001698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12001698 is an abundant number, since it is smaller than the sum of its proper divisors (14371038).

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

12001698 is a wasteful number, since it uses less digits than its factorization.

12001698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470 (or 9467 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 12001698 is about 3464.3466916578. The cubic root of 12001698 is about 228.9536464724.

The spelling of 12001698 in words is "twelve million, one thousand, six hundred ninety-eight".