16383634 has 4 divisors (see below), whose sum is σ = 24575454. Its totient is φ = 8191816.

The previous prime is 16383629. The next prime is 16383649. The reversal of 16383634 is 43638361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43638361 = 13 ⋅3356797.

It can be written as a sum of positive squares in only one way, i.e., 16362025 + 21609 = 4045^2 + 147^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 16383634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095907 + ... + 4095910.

Almost surely, 2^16383634 is an apocalyptic number.

16383634 is a deficient number, since it is larger than the sum of its proper divisors (8191820).

16383634 is an equidigital number, since it uses as much as digits as its factorization.

16383634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191819.

The product of its digits is 31104, while the sum is 34.

The square root of 16383634 is about 4047.6701940746. The cubic root of 16383634 is about 253.9822770613.

The spelling of 16383634 in words is "sixteen million, three hundred eighty-three thousand, six hundred thirty-four".