1662061 has 4 divisors (see below), whose sum is σ = 1697472. Its totient is φ = 1626652.

The previous prime is 1662041. The next prime is 1662083. The reversal of 1662061 is 1602661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1662061 - 2⁵ = 1662029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662041) 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, 17635 + ... + 17728.

It is an arithmetic number, because the mean of its divisors is an integer number (424368).

2^1662061 is an apocalyptic number.

It is an amenable number.

1662061 is a deficient number, since it is larger than the sum of its proper divisors (35411).

1662061 is an equidigital number, since it uses as much as digits as its factorization.

1662061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35410.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1662061 is about 1289.2094476849. The cubic root of 1662061 is about 118.4537969629.

The spelling of 1662061 in words is "one million, six hundred sixty-two thousand, sixty-one".