1662355 has 4 divisors (see below), whose sum is σ = 1994832. Its totient is φ = 1329880.

The previous prime is 1662347. The next prime is 1662361. The reversal of 1662355 is 5532661.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1662355 - 2³ = 1662347 is a prime.

It is a Duffinian number.

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, 166231 + ... + 166240.

It is an arithmetic number, because the mean of its divisors is an integer number (498708).

2^1662355 is an apocalyptic number.

1662355 is a deficient number, since it is larger than the sum of its proper divisors (332477).

1662355 is an equidigital number, since it uses as much as digits as its factorization.

1662355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332476.

The product of its digits is 5400, while the sum is 28.

The square root of 1662355 is about 1289.3234660084. The cubic root of 1662355 is about 118.4607809350.

The spelling of 1662355 in words is "one million, six hundred sixty-two thousand, three hundred fifty-five".