1690713 has 10 divisors (see below), whose sum is σ = 2525754. Its totient is φ = 1127088.

The previous prime is 1690693. The next prime is 1690727. The reversal of 1690713 is 3170961.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 363609 = 1152^2 + 603^2 .

It is not a de Polignac number, because 1690713 - 2⁵ = 1690681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1690783) 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 9 ways as a sum of consecutive naturals, for example, 10356 + ... + 10517.

2^1690713 is an apocalyptic number.

It is an amenable number.

1690713 is a deficient number, since it is larger than the sum of its proper divisors (835041).

1690713 is an equidigital number, since it uses as much as digits as its factorization.

1690713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20885 (or 20876 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1690713 is about 1300.2742018513. The cubic root of 1690713 is about 119.1305912828.

The spelling of 1690713 in words is "one million, six hundred ninety thousand, seven hundred thirteen".