1606365 has 32 divisors (see below), whose sum is σ = 2912640. Its totient is φ = 839808.

The previous prime is 1606349. The next prime is 1606379. The reversal of 1606365 is 5636061.

It is not a de Polignac number, because 1606365 - 2⁴ = 1606349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1606365 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9774 + ... + 9936.

It is an arithmetic number, because the mean of its divisors is an integer number (91020).

2^1606365 is an apocalyptic number.

1606365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606365 is a deficient number, since it is larger than the sum of its proper divisors (1306275).

1606365 is a wasteful number, since it uses less digits than its factorization.

1606365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1606365 is about 1267.4245539676. The cubic root of 1606365 is about 117.1155990939.

1606365 divided by its sum of digits (27) gives a palindrome (59495).

The spelling of 1606365 in words is "one million, six hundred six thousand, three hundred sixty-five".