1660953 has 12 divisors (see below), whose sum is σ = 2576400. Its totient is φ = 949032.

The previous prime is 1660943. The next prime is 1660957. The reversal of 1660953 is 3590661.

It is a happy number.

It is not a de Polignac number, because 1660953 - 2⁵ = 1660921 is a prime.

1660953 is a lucky number.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1660953.

It is not an unprimeable number, because it can be changed into a prime (1660957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5503 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (214700).

2^1660953 is an apocalyptic number.

It is an amenable number.

1660953 is a deficient number, since it is larger than the sum of its proper divisors (915447).

1660953 is a wasteful number, since it uses less digits than its factorization.

1660953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11316 (or 11309 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1660953 is about 1288.7796553329. The cubic root of 1660953 is about 118.4274690117.

The spelling of 1660953 in words is "one million, six hundred sixty thousand, nine hundred fifty-three".