16612471 has 4 divisors (see below), whose sum is σ = 16714552. Its totient is φ = 16510392.

The previous prime is 16612459. The next prime is 16612481. The reversal of 16612471 is 17421661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16612471 - 2¹⁹ = 16088183 is a prime.

It is a super-3 number, since 3×16612471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16612481) 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, 50796 + ... + 51121.

It is an arithmetic number, because the mean of its divisors is an integer number (4178638).

Almost surely, 2^16612471 is an apocalyptic number.

16612471 is a deficient number, since it is larger than the sum of its proper divisors (102081).

16612471 is a wasteful number, since it uses less digits than its factorization.

16612471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102080.

The product of its digits is 2016, while the sum is 28.

The square root of 16612471 is about 4075.8399134412. The cubic root of 16612471 is about 255.1593058133.

The spelling of 16612471 in words is "sixteen million, six hundred twelve thousand, four hundred seventy-one".