1662662 has 8 divisors (see below), whose sum is σ = 2518992. Its totient is φ = 823000.

The previous prime is 1662653. The next prime is 1662667. The reversal of 1662662 is 2662661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3914 + ... + 4317.

It is an arithmetic number, because the mean of its divisors is an integer number (314874).

2^1662662 is an apocalyptic number.

1662662 is a deficient number, since it is larger than the sum of its proper divisors (856330).

1662662 is a wasteful number, since it uses less digits than its factorization.

1662662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334.

The product of its digits is 5184, while the sum is 29.

The square root of 1662662 is about 1289.4425151979. The cubic root of 1662662 is about 118.4680728434.

Subtracting 1662662 from its reverse (2662661), we obtain a palindrome (999999).

The spelling of 1662662 in words is "one million, six hundred sixty-two thousand, six hundred sixty-two".