16993435 has 8 divisors (see below), whose sum is σ = 21278880. Its totient is φ = 13003584.

The previous prime is 16993399. The next prime is 16993439. The reversal of 16993435 is 53439961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16993435 - 2¹⁵ = 16960667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16993439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73770 + ... + 73999.

It is an arithmetic number, because the mean of its divisors is an integer number (2659860).

Almost surely, 2^16993435 is an apocalyptic number.

16993435 is a deficient number, since it is larger than the sum of its proper divisors (4285445).

16993435 is a wasteful number, since it uses less digits than its factorization.

16993435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147797.

The product of its digits is 87480, while the sum is 40.

The square root of 16993435 is about 4122.3094255526. The cubic root of 16993435 is about 257.0950558559.

The spelling of 16993435 in words is "sixteen million, nine hundred ninety-three thousand, four hundred thirty-five".