1406986 has 20 divisors (see below), whose sum is σ = 2470482. Its totient is φ = 600936.

The previous prime is 1406983. The next prime is 1407011. The reversal of 1406986 is 6896041.

It can be written as a sum of positive squares in only one way, i.e., 866761 + 540225 = 931^2 + 735^2 .

It is not an unprimeable number, because it can be changed into a prime (1406983) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4656 + ... + 4948.

2^1406986 is an apocalyptic number.

1406986 is a deficient number, since it is larger than the sum of its proper divisors (1063496).

1406986 is an frugal number, since it uses more digits than its factorization.

1406986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1406986 is about 1186.1644068172. The cubic root of 1406986 is about 112.0546608188.

The spelling of 1406986 in words is "one million, four hundred six thousand, nine hundred eighty-six".