1665364 has 12 divisors (see below), whose sum is σ = 2929024. Its totient is φ = 828504.

The previous prime is 1665343. The next prime is 1665421. The reversal of 1665364 is 4635661.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 42 + ... + 1825.

2^1665364 is an apocalyptic number.

It is an amenable number.

1665364 is a deficient number, since it is larger than the sum of its proper divisors (1263660).

1665364 is a wasteful number, since it uses less digits than its factorization.

1665364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094 (or 2092 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 1665364 is about 1290.4898294834. The cubic root of 1665364 is about 118.5322124561.

The spelling of 1665364 in words is "one million, six hundred sixty-five thousand, three hundred sixty-four".