1001662 has 4 divisors (see below), whose sum is σ = 1502496. Its totient is φ = 500830.

The previous prime is 1001659. The next prime is 1001669. The reversal of 1001662 is 2661001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250414 + ... + 250417.

It is an arithmetic number, because the mean of its divisors is an integer number (375624).

2^1001662 is an apocalyptic number.

1001662 is a deficient number, since it is larger than the sum of its proper divisors (500834).

1001662 is an equidigital number, since it uses as much as digits as its factorization.

1001662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500833.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1001662 is about 1000.8306550061. The cubic root of 1001662 is about 100.0553693367.

Adding to 1001662 its reverse (2661001), we get a palindrome (3662663).

The spelling of 1001662 in words is "one million, one thousand, six hundred sixty-two".