16993011 has 16 divisors (see below), whose sum is σ = 27257600. Its totient is φ = 9199008.

The previous prime is 16992967. The next prime is 16993033. The reversal of 16993011 is 11039961.

It is not a de Polignac number, because 16993011 - 2¹⁷ = 16861939 is a prime.

It is a super-2 number, since 2×16993011² = 577524845692242, which contains 22 as substring.

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 16993011.

It is not an unprimeable number, because it can be changed into a prime (16993051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20896 + ... + 21693.

It is an arithmetic number, because the mean of its divisors is an integer number (1703600).

Almost surely, 2^16993011 is an apocalyptic number.

16993011 is a deficient number, since it is larger than the sum of its proper divisors (10264589).

16993011 is a wasteful number, since it uses less digits than its factorization.

16993011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42618.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 16993011 is about 4122.2579977483. The cubic root of 16993011 is about 257.0929175947.

The spelling of 16993011 in words is "sixteen million, nine hundred ninety-three thousand, eleven".