1662363 has 12 divisors (see below), whose sum is σ = 2490488. Its totient is φ = 1108080.

The previous prime is 1662361. The next prime is 1662377. The reversal of 1662363 is 3632661.

It is not a de Polignac number, because 1662363 - 2¹ = 1662361 is a prime.

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

It is a d-powerful number, because it can be written as 1 + 6² + 6⁵ + 2¹⁵ + 3⁹ + 6⁵ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3178 + ... + 3663.

2^1662363 is an apocalyptic number.

1662363 is a deficient number, since it is larger than the sum of its proper divisors (828125).

1662363 is an frugal number, since it uses more digits than its factorization.

1662363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856 (or 6844 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 1662363 is about 1289.3265684069. The cubic root of 1662363 is about 118.4609709635.

It can be divided in two parts, 1662 and 363, that multiplied together give a palindrome (603306).

The spelling of 1662363 in words is "one million, six hundred sixty-two thousand, three hundred sixty-three".