1023662 has 4 divisors (see below), whose sum is σ = 1535496. Its totient is φ = 511830.

The previous prime is 1023653. The next prime is 1023697. The reversal of 1023662 is 2663201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2663201 = 59 ⋅45139.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255914 + ... + 255917.

It is an arithmetic number, because the mean of its divisors is an integer number (383874).

2^1023662 is an apocalyptic number.

1023662 is a deficient number, since it is larger than the sum of its proper divisors (511834).

1023662 is an equidigital number, since it uses as much as digits as its factorization.

1023662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511833.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1023662 is about 1011.7618296813. The cubic root of 1023662 is about 100.7825928411.

Adding to 1023662 its reverse (2663201), we get a palindrome (3686863).

The spelling of 1023662 in words is "one million, twenty-three thousand, six hundred sixty-two".