16649467 has 2 divisors, whose sum is σ = 16649468. Its totient is φ = 16649466.

The previous prime is 16649431. The next prime is 16649483. The reversal of 16649467 is 76494661.

It is a strong prime.

It is an emirp because it is prime and its reverse (76494661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16649467 - 2¹¹ = 16647419 is a prime.

It is not a weakly prime, because it can be changed into another prime (16649167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8324733 + 8324734.

It is an arithmetic number, because the mean of its divisors is an integer number (8324734).

Almost surely, 2^16649467 is an apocalyptic number.

16649467 is a deficient number, since it is larger than the sum of its proper divisors (1).

16649467 is an equidigital number, since it uses as much as digits as its factorization.

16649467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 16649467 is about 4080.3758405323. The cubic root of 16649467 is about 255.3485787757.

The spelling of 16649467 in words is "sixteen million, six hundred forty-nine thousand, four hundred sixty-seven".