1623608 has 32 divisors (see below), whose sum is σ = 3532800. Its totient is φ = 685152.

The previous prime is 1623599. The next prime is 1623631. The reversal of 1623608 is 8063261.

It is a super-2 number, since 2×1623608² = 5272205875328, which contains 22 as substring.

It is a zygodrome in base 2.

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, 4241 + ... + 4607.

It is an arithmetic number, because the mean of its divisors is an integer number (110400).

2^1623608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1623608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766400).

1623608 is an abundant number, since it is smaller than the sum of its proper divisors (1909192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1623608 is a wasteful number, since it uses less digits than its factorization.

1623608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1623608 is about 1274.2087741026. The cubic root of 1623608 is about 117.5331549715.

Adding to 1623608 its reverse (8063261), we get a palindrome (9686869).

The spelling of 1623608 in words is "one million, six hundred twenty-three thousand, six hundred eight".