1616323 has 4 divisors (see below), whose sum is σ = 1619128. Its totient is φ = 1613520.

The previous prime is 1616297. The next prime is 1616347. The reversal of 1616323 is 3236161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3236161 = 1373 ⋅2357.

It is a cyclic number.

It is not a de Polignac number, because 1616323 - 2⁵ = 1616291 is a prime.

It is a super-2 number, since 2×1616323² = 5225000080658, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1616294 and 1616303.

It is not an unprimeable number, because it can be changed into a prime (1616623) 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, 186 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (404782).

2^1616323 is an apocalyptic number.

1616323 is a deficient number, since it is larger than the sum of its proper divisors (2805).

1616323 is an equidigital number, since it uses as much as digits as its factorization.

1616323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804.

The product of its digits is 648, while the sum is 22.

The square root of 1616323 is about 1271.3469235421. The cubic root of 1616323 is about 117.3571040926.

The spelling of 1616323 in words is "one million, six hundred sixteen thousand, three hundred twenty-three".