1406597 has 8 divisors (see below), whose sum is σ = 1506456. Its totient is φ = 1308672.

The previous prime is 1406593. The next prime is 1406609. The reversal of 1406597 is 7956041.

It is a happy number.

It is a Cunningham number, because it is equal to 1186²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 81796 + 1324801 = 286^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1406597 - 2² = 1406593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (188307).

2^1406597 is an apocalyptic number.

1406597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1406597 is a deficient number, since it is larger than the sum of its proper divisors (99859).

1406597 is an equidigital number, since it uses as much as digits as its factorization.

1406597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1406597 is about 1186.0004215851. Note that the first 3 decimals coincide. The cubic root of 1406597 is about 112.0443330021.

The spelling of 1406597 in words is "one million, four hundred six thousand, five hundred ninety-seven".