1662674 has 8 divisors (see below), whose sum is σ = 2685900. Its totient is φ = 767376.

The previous prime is 1662667. The next prime is 1662697. The reversal of 1662674 is 4762661.

It can be written as a sum of positive squares in 2 ways, for example, as 1651225 + 11449 = 1285^2 + 107^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1662674.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31949 + ... + 32000.

2^1662674 is an apocalyptic number.

1662674 is a deficient number, since it is larger than the sum of its proper divisors (1023226).

1662674 is a wasteful number, since it uses less digits than its factorization.

1662674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63964.

The product of its digits is 12096, while the sum is 32.

The square root of 1662674 is about 1289.4471683632. The cubic root of 1662674 is about 118.4683578509.

The spelling of 1662674 in words is "one million, six hundred sixty-two thousand, six hundred seventy-four".