1670255 has 8 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 1290016.

The previous prime is 1670213. The next prime is 1670269. The reversal of 1670255 is 5520761.

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 1670255 - 2⁸ = 1669999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5615 + ... + 5904.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

2^1670255 is an apocalyptic number.

1670255 is a deficient number, since it is larger than the sum of its proper divisors (403345).

1670255 is a wasteful number, since it uses less digits than its factorization.

1670255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11553.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1670255 is about 1292.3834570281. The cubic root of 1670255 is about 118.6481379493.

The spelling of 1670255 in words is "one million, six hundred seventy thousand, two hundred fifty-five".