1790069 has 4 divisors (see below), whose sum is σ = 1794444. Its totient is φ = 1785696.

The previous prime is 1790059. The next prime is 1790071. The reversal of 1790069 is 9600971.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 289444 = 1225^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1790069 - 2⁴ = 1790053 is a prime.

It is a super-2 number, since 2×1790069² = 6408694049522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790029) 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 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (448611).

2^1790069 is an apocalyptic number.

It is an amenable number.

1790069 is a deficient number, since it is larger than the sum of its proper divisors (4375).

1790069 is an equidigital number, since it uses as much as digits as its factorization.

1790069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1790069 is about 1337.9346022882. The cubic root of 1790069 is about 121.4199148220.

The spelling of 1790069 in words is "one million, seven hundred ninety thousand, sixty-nine".