1391486 has 4 divisors (see below), whose sum is σ = 2087232. Its totient is φ = 695742.

The previous prime is 1391483. The next prime is 1391519. The reversal of 1391486 is 6841931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347870 + ... + 347873.

It is an arithmetic number, because the mean of its divisors is an integer number (521808).

2^1391486 is an apocalyptic number.

1391486 is a deficient number, since it is larger than the sum of its proper divisors (695746).

1391486 is an equidigital number, since it uses as much as digits as its factorization.

1391486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695745.

The product of its digits is 5184, while the sum is 32.

The square root of 1391486 is about 1179.6126482876. The cubic root of 1391486 is about 111.6416587151.

The spelling of 1391486 in words is "one million, three hundred ninety-one thousand, four hundred eighty-six".