1654441 has 2 divisors, whose sum is σ = 1654442. Its totient is φ = 1654440.

The previous prime is 1654427. The next prime is 1654519. The reversal of 1654441 is 1444561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 837225 + 817216 = 915^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1654441 - 2⁷ = 1654313 is a prime.

It is equal to p₁₂₄₉₅₄ and since 1654441 and 124954 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1654241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827220 + 827221.

It is an arithmetic number, because the mean of its divisors is an integer number (827221).

2^1654441 is an apocalyptic number.

It is an amenable number.

1654441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1654441 is an equidigital number, since it uses as much as digits as its factorization.

1654441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 1654441 is about 1286.2507531582. The cubic root of 1654441 is about 118.2724957835.

The spelling of 1654441 in words is "one million, six hundred fifty-four thousand, four hundred forty-one".