1663364 has 12 divisors (see below), whose sum is σ = 2921100. Its totient is φ = 828768.

The previous prime is 1663351. The next prime is 1663373. The reversal of 1663364 is 4633661.

It can be written as a sum of positive squares in 2 ways, for example, as 577600 + 1085764 = 760^2 + 1042^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (243425).

2^1663364 is an apocalyptic number.

It is an amenable number.

1663364 is a deficient number, since it is larger than the sum of its proper divisors (1257736).

1663364 is a wasteful number, since it uses less digits than its factorization.

1663364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 1663364 is about 1289.7146971327. The cubic root of 1663364 is about 118.4847434767.

The spelling of 1663364 in words is "one million, six hundred sixty-three thousand, three hundred sixty-four".