1623253 has 4 divisors (see below), whose sum is σ = 1675648. Its totient is φ = 1570860.

The previous prime is 1623233. The next prime is 1623263. The reversal of 1623253 is 3523261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1623253 - 2¹⁷ = 1492181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26151 + ... + 26212.

It is an arithmetic number, because the mean of its divisors is an integer number (418912).

2^1623253 is an apocalyptic number.

It is an amenable number.

1623253 is a deficient number, since it is larger than the sum of its proper divisors (52395).

1623253 is an equidigital number, since it uses as much as digits as its factorization.

1623253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52394.

The product of its digits is 1080, while the sum is 22.

The square root of 1623253 is about 1274.0694643543. The cubic root of 1623253 is about 117.5245881846.

The spelling of 1623253 in words is "one million, six hundred twenty-three thousand, two hundred fifty-three".