3499789 has 4 divisors (see below), whose sum is σ = 3505024. Its totient is φ = 3494556.

The previous prime is 3499787. The next prime is 3499799. The reversal of 3499789 is 9879943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9879943 = 19 ⋅519997.

It is a cyclic number.

It is not a de Polignac number, because 3499789 - 2¹ = 3499787 is a prime.

It is a Duffinian number.

3499789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3499787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437 + ... + 3010.

It is an arithmetic number, because the mean of its divisors is an integer number (876256).

Almost surely, 2^3499789 is an apocalyptic number.

It is an amenable number.

3499789 is a deficient number, since it is larger than the sum of its proper divisors (5235).

3499789 is an equidigital number, since it uses as much as digits as its factorization.

3499789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234.

The product of its digits is 489888, while the sum is 49.

The square root of 3499789 is about 1870.7723004150. The cubic root of 3499789 is about 151.8263974836.

The spelling of 3499789 in words is "three million, four hundred ninety-nine thousand, seven hundred eighty-nine".