3405553 has 4 divisors (see below), whose sum is σ = 3409380. Its totient is φ = 3401728.

The previous prime is 3405547. The next prime is 3405601. The reversal of 3405553 is 3555043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 1787569 = 1272^2 + 1337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3405553 is a prime.

It is a Duffinian number.

3405553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3405653) 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, 201 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (852345).

Almost surely, 2^3405553 is an apocalyptic number.

It is an amenable number.

3405553 is a deficient number, since it is larger than the sum of its proper divisors (3827).

3405553 is a wasteful number, since it uses less digits than its factorization.

3405553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 3405553 is about 1845.4140456819. The cubic root of 3405553 is about 150.4512779966.

The spelling of 3405553 in words is "three million, four hundred five thousand, five hundred fifty-three".