1623255 has 8 divisors (see below), whose sum is σ = 2597232. Its totient is φ = 865728.

The previous prime is 1623233. The next prime is 1623263. The reversal of 1623255 is 5523261.

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

It is not a de Polignac number, because 1623255 - 2⁹ = 1622743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54094 + ... + 54123.

It is an arithmetic number, because the mean of its divisors is an integer number (324654).

2^1623255 is an apocalyptic number.

1623255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1623255 is a deficient number, since it is larger than the sum of its proper divisors (973977).

1623255 is a wasteful number, since it uses less digits than its factorization.

1623255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108225.

The product of its digits is 1800, while the sum is 24.

The square root of 1623255 is about 1274.0702492406. The cubic root of 1623255 is about 117.5246364517.

The spelling of 1623255 in words is "one million, six hundred twenty-three thousand, two hundred fifty-five".