16389629 has 4 divisors (see below), whose sum is σ = 16507680. Its totient is φ = 16271580.

The previous prime is 16389613. The next prime is 16389641. The reversal of 16389629 is 92698361.

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: 92698361 = 7 ⋅13242623.

It is a cyclic number.

It is not a de Polignac number, because 16389629 - 2⁴ = 16389613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16389629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389679) 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, 58817 + ... + 59094.

It is an arithmetic number, because the mean of its divisors is an integer number (4126920).

Almost surely, 2^16389629 is an apocalyptic number.

It is an amenable number.

16389629 is a deficient number, since it is larger than the sum of its proper divisors (118051).

16389629 is a wasteful number, since it uses less digits than its factorization.

16389629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118050.

The product of its digits is 139968, while the sum is 44.

The square root of 16389629 is about 4048.4106758085. The cubic root of 16389629 is about 254.0132518351.

The spelling of 16389629 in words is "sixteen million, three hundred eighty-nine thousand, six hundred twenty-nine".