16332985 has 4 divisors (see below), whose sum is σ = 19599588. Its totient is φ = 13066384.

The previous prime is 16332973. The next prime is 16332997. The reversal of 16332985 is 58923361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58923361 = 7 ⋅8417623.

It is an interprime number because it is at equal distance from previous prime (16332973) and next prime (16332997).

It can be written as a sum of positive squares in 2 ways, for example, as 2650384 + 13682601 = 1628^2 + 3699^2 .

It is a cyclic number.

It is not a de Polignac number, because 16332985 - 2⁷ = 16332857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633294 + ... + 1633303.

It is an arithmetic number, because the mean of its divisors is an integer number (4899897).

Almost surely, 2^16332985 is an apocalyptic number.

It is an amenable number.

16332985 is a deficient number, since it is larger than the sum of its proper divisors (3266603).

16332985 is an equidigital number, since it uses as much as digits as its factorization.

16332985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266602.

The product of its digits is 38880, while the sum is 37.

The square root of 16332985 is about 4041.4087890239. The cubic root of 16332985 is about 253.7202833506.

The spelling of 16332985 in words is "sixteen million, three hundred thirty-two thousand, nine hundred eighty-five".