1690714 has 4 divisors (see below), whose sum is σ = 2536074. Its totient is φ = 845356.

The previous prime is 1690693. The next prime is 1690727. The reversal of 1690714 is 4170961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4170961 = 271 ⋅15391.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 13689 = 1295^2 + 117^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 422677 + ... + 422680.

2^1690714 is an apocalyptic number.

1690714 is a deficient number, since it is larger than the sum of its proper divisors (845360).

1690714 is an equidigital number, since it uses as much as digits as its factorization.

1690714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845359.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1690714 is about 1300.2745863855. The cubic root of 1690714 is about 119.1306147700.

The spelling of 1690714 in words is "one million, six hundred ninety thousand, seven hundred fourteen".