12099782 has 4 divisors (see below), whose sum is σ = 18149676. Its totient is φ = 6049890.

The previous prime is 12099761. The next prime is 12099799. The reversal of 12099782 is 28799021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28799021 = 59 ⋅488119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3024944 + ... + 3024947.

It is an arithmetic number, because the mean of its divisors is an integer number (4537419).

Almost surely, 2^12099782 is an apocalyptic number.

12099782 is a deficient number, since it is larger than the sum of its proper divisors (6049894).

12099782 is an equidigital number, since it uses as much as digits as its factorization.

12099782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049893.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12099782 is about 3478.4740907473. The cubic root of 12099782 is about 229.5756637311.

The spelling of 12099782 in words is "twelve million, ninety-nine thousand, seven hundred eighty-two".