1662546 has 16 divisors (see below), whose sum is σ = 3338208. Its totient is φ = 552000.

The previous prime is 1662527. The next prime is 1662547. The reversal of 1662546 is 6452661.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1662547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (208638).

2^1662546 is an apocalyptic number.

1662546 is an abundant number, since it is smaller than the sum of its proper divisors (1675662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1662546 is a wasteful number, since it uses less digits than its factorization.

1662546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 8640, while the sum is 30.

The square root of 1662546 is about 1289.3975337343. The cubic root of 1662546 is about 118.4653177001.

Adding to 1662546 its sum of digits (30), we get a triangular number (1662576 = T₁₈₂₃).

The spelling of 1662546 in words is "one million, six hundred sixty-two thousand, five hundred forty-six".