16064639 has 2 divisors, whose sum is σ = 16064640. Its totient is φ = 16064638.

The previous prime is 16064627. The next prime is 16064683. The reversal of 16064639 is 93646061.

It is a weak prime.

It is an emirp because it is prime and its reverse (93646061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16064639 - 2¹⁶ = 15999103 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16064599 and 16064608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16064689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8032319 + 8032320.

It is an arithmetic number, because the mean of its divisors is an integer number (8032320).

Almost surely, 2^16064639 is an apocalyptic number.

16064639 is a deficient number, since it is larger than the sum of its proper divisors (1).

16064639 is an equidigital number, since it uses as much as digits as its factorization.

16064639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 16064639 is about 4008.0717308950. The cubic root of 16064639 is about 252.3230875262.

The spelling of 16064639 in words is "sixteen million, sixty-four thousand, six hundred thirty-nine".