16323901 has 4 divisors (see below), whose sum is σ = 17807904. Its totient is φ = 14839900.

The previous prime is 16323871. The next prime is 16323911. The reversal of 16323901 is 10932361.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10932361 = 11 ⋅993851.

It is a cyclic number.

It is not a de Polignac number, because 16323901 - 2⁷ = 16323773 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 (16323911) 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, 741985 + ... + 742006.

It is an arithmetic number, because the mean of its divisors is an integer number (4451976).

Almost surely, 2^16323901 is an apocalyptic number.

16323901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16323901 is a deficient number, since it is larger than the sum of its proper divisors (1484003).

16323901 is a wasteful number, since it uses less digits than its factorization.

16323901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484002.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 16323901 is about 4040.2847671915. The cubic root of 16323901 is about 253.6732369906.

The spelling of 16323901 in words is "sixteen million, three hundred twenty-three thousand, nine hundred one".