1668362 has 4 divisors (see below), whose sum is σ = 2502546. Its totient is φ = 834180.

The previous prime is 1668361. The next prime is 1668379. The reversal of 1668362 is 2638661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2638661 = 67 ⋅39383.

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 1681 = 1291^2 + 41^2 .

It is not an unprimeable number, because it can be changed into a prime (1668361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417089 + ... + 417092.

2^1668362 is an apocalyptic number.

1668362 is a deficient number, since it is larger than the sum of its proper divisors (834184).

1668362 is an equidigital number, since it uses as much as digits as its factorization.

1668362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834183.

The product of its digits is 10368, while the sum is 32.

The square root of 1668362 is about 1291.6508816240. The cubic root of 1668362 is about 118.6032973252.

Subtracting 1668362 from its reverse (2638661), we obtain a cube (970299 = 99³).

The spelling of 1668362 in words is "one million, six hundred sixty-eight thousand, three hundred sixty-two".