16328629 has 4 divisors (see below), whose sum is σ = 16387020. Its totient is φ = 16270240.

The previous prime is 16328617. The next prime is 16328633. The reversal of 16328629 is 92682361.

16328629 = 87² + 88² + ... + 367².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92682361 = 19 ⋅4878019.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 9579025 = 2598^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 16328629 - 2¹¹ = 16326581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16328639) 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, 28774 + ... + 29335.

It is an arithmetic number, because the mean of its divisors is an integer number (4096755).

Almost surely, 2^16328629 is an apocalyptic number.

It is an amenable number.

16328629 is a deficient number, since it is larger than the sum of its proper divisors (58391).

16328629 is an equidigital number, since it uses as much as digits as its factorization.

16328629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58390.

The product of its digits is 31104, while the sum is 37.

The square root of 16328629 is about 4040.8698321030. The cubic root of 16328629 is about 253.6977256486.

The spelling of 16328629 in words is "sixteen million, three hundred twenty-eight thousand, six hundred twenty-nine".