16349639 has 2 divisors, whose sum is σ = 16349640. Its totient is φ = 16349638.

The previous prime is 16349629. The next prime is 16349687. The reversal of 16349639 is 93694361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16349639 - 2⁴ = 16349623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16349596 and 16349605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16349629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8174819 + 8174820.

It is an arithmetic number, because the mean of its divisors is an integer number (8174820).

Almost surely, 2^16349639 is an apocalyptic number.

16349639 is a deficient number, since it is larger than the sum of its proper divisors (1).

16349639 is an equidigital number, since it uses as much as digits as its factorization.

16349639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 16349639 is about 4043.4686841869. The cubic root of 16349639 is about 253.8064897246.

The spelling of 16349639 in words is "sixteen million, three hundred forty-nine thousand, six hundred thirty-nine".