2393986 has 16 divisors (see below), whose sum is σ = 4124736. Its totient is φ = 1020816.

The previous prime is 2393971. The next prime is 2393987. The reversal of 2393986 is 6893932.

It is not an unprimeable number, because it can be changed into a prime (2393987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4020 + ... + 4576.

It is an arithmetic number, because the mean of its divisors is an integer number (257796).

2^2393986 is an apocalyptic number.

2393986 is a deficient number, since it is larger than the sum of its proper divisors (1730750).

2393986 is a wasteful number, since it uses less digits than its factorization.

2393986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its digits is 69984, while the sum is 40.

The square root of 2393986 is about 1547.2511108414. The cubic root of 2393986 is about 133.7746639816.

It can be divided in two parts, 23939 and 86, that added together give a square (24025 = 155²).

The spelling of 2393986 in words is "two million, three hundred ninety-three thousand, nine hundred eighty-six".