16946641 has 4 divisors (see below), whose sum is σ = 17032000. Its totient is φ = 16861284.

The previous prime is 16946627. The next prime is 16946663. The reversal of 16946641 is 14664961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14664961 = 23 ⋅637607.

It is a cyclic number.

It is not a de Polignac number, because 16946641 - 2¹¹ = 16944593 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 16946641.

It is not an unprimeable number, because it can be changed into a prime (16946141) 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, 42381 + ... + 42778.

It is an arithmetic number, because the mean of its divisors is an integer number (4258000).

Almost surely, 2^16946641 is an apocalyptic number.

It is an amenable number.

16946641 is a deficient number, since it is larger than the sum of its proper divisors (85359).

16946641 is an equidigital number, since it uses as much as digits as its factorization.

16946641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85358.

The product of its digits is 31104, while the sum is 37.

The square root of 16946641 is about 4116.6298109011. The cubic root of 16946641 is about 256.8588555120.

The spelling of 16946641 in words is "sixteen million, nine hundred forty-six thousand, six hundred forty-one".