1662073 has 8 divisors (see below), whose sum is σ = 2011392. Its totient is φ = 1340736.

The previous prime is 1662041. The next prime is 1662083. The reversal of 1662073 is 3702661.

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

It is a cyclic number.

It is not a de Polignac number, because 1662073 - 2⁵ = 1662041 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6865 + ... + 7102.

It is an arithmetic number, because the mean of its divisors is an integer number (251424).

2^1662073 is an apocalyptic number.

It is an amenable number.

1662073 is a deficient number, since it is larger than the sum of its proper divisors (349319).

1662073 is a wasteful number, since it uses less digits than its factorization.

1662073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13991.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1662073 is about 1289.2141016914. The cubic root of 1662073 is about 118.4540820391.

The spelling of 1662073 in words is "one million, six hundred sixty-two thousand, seventy-three".