1623089 has 4 divisors (see below), whose sum is σ = 1747956. Its totient is φ = 1498224.

The previous prime is 1623077. The next prime is 1623091. The reversal of 1623089 is 9803261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 970225 = 808^2 + 985^2 .

It is not a de Polignac number, because 1623089 - 2⁸ = 1622833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1623029) 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, 62414 + ... + 62439.

It is an arithmetic number, because the mean of its divisors is an integer number (436989).

2^1623089 is an apocalyptic number.

It is an amenable number.

1623089 is a deficient number, since it is larger than the sum of its proper divisors (124867).

1623089 is a wasteful number, since it uses less digits than its factorization.

1623089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124866.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1623089 is about 1274.0051020306. The cubic root of 1623089 is about 117.5206301486.

The spelling of 1623089 in words is "one million, six hundred twenty-three thousand, eighty-nine".