3430645 has 8 divisors (see below), whose sum is σ = 4133304. Its totient is φ = 2733504.

The previous prime is 3430643. The next prime is 3430663. The reversal of 3430645 is 5460343.

It can be written as a sum of positive squares in 4 ways, for example, as 70756 + 3359889 = 266^2 + 1833^2 .

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 3430645 - 2¹ = 3430643 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 (3430643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (516663).

Almost surely, 2^3430645 is an apocalyptic number.

It is an amenable number.

3430645 is a deficient number, since it is larger than the sum of its proper divisors (702659).

3430645 is a wasteful number, since it uses less digits than its factorization.

3430645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3430645 is about 1852.2000431919. The cubic root of 3430645 is about 150.8198808416.

Adding to 3430645 its reverse (5460343), we get a palindrome (8890988).

The spelling of 3430645 in words is "three million, four hundred thirty thousand, six hundred forty-five".