12398782 has 16 divisors (see below), whose sum is σ = 20392704. Its totient is φ = 5607000.

The previous prime is 12398779. The next prime is 12398803. The reversal of 12398782 is 28789321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3307 + ... + 5977.

It is an arithmetic number, because the mean of its divisors is an integer number (1274544).

Almost surely, 2^12398782 is an apocalyptic number.

12398782 is a deficient number, since it is larger than the sum of its proper divisors (7993922).

12398782 is a wasteful number, since it uses less digits than its factorization.

12398782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its digits is 48384, while the sum is 40.

The square root of 12398782 is about 3521.1904237062. The cubic root of 12398782 is about 231.4513267919.

The spelling of 12398782 in words is "twelve million, three hundred ninety-eight thousand, seven hundred eighty-two".