16307933 has 4 divisors (see below), whose sum is σ = 16352028. Its totient is φ = 16263840.

The previous prime is 16307917. The next prime is 16307939. The reversal of 16307933 is 33970361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33970361 = 149 ⋅227989.

It can be written as a sum of positive squares in 2 ways, for example, as 10067929 + 6240004 = 3173^2 + 2498^2 .

It is a cyclic number.

It is not a de Polignac number, because 16307933 - 2⁴ = 16307917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16307933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16307939) 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, 21488 + ... + 22233.

It is an arithmetic number, because the mean of its divisors is an integer number (4088007).

Almost surely, 2^16307933 is an apocalyptic number.

It is an amenable number.

16307933 is a deficient number, since it is larger than the sum of its proper divisors (44095).

16307933 is an equidigital number, since it uses as much as digits as its factorization.

16307933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44094.

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 16307933 is about 4038.3081853667. The cubic root of 16307933 is about 253.5904958258.

The spelling of 16307933 in words is "sixteen million, three hundred seven thousand, nine hundred thirty-three".