1655441 has 4 divisors (see below), whose sum is σ = 1662900. Its totient is φ = 1647984.

The previous prime is 1655419. The next prime is 1655449. The reversal of 1655441 is 1445561.

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 1615441 + 40000 = 1271^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1655441 - 2⁶ = 1655377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655449) 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, 3386 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (415725).

2^1655441 is an apocalyptic number.

It is an amenable number.

1655441 is a deficient number, since it is larger than the sum of its proper divisors (7459).

1655441 is an equidigital number, since it uses as much as digits as its factorization.

1655441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458.

The product of its digits is 2400, while the sum is 26.

The square root of 1655441 is about 1286.6394211278. The cubic root of 1655441 is about 118.2963202806.

The spelling of 1655441 in words is "one million, six hundred fifty-five thousand, four hundred forty-one".