16438677 has 8 divisors (see below), whose sum is σ = 23207616. Its totient is φ = 10314432.

The previous prime is 16438661. The next prime is 16438703. The reversal of 16438677 is 77683461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16438677 - 2⁴ = 16438661 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16438607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161113 + ... + 161214.

It is an arithmetic number, because the mean of its divisors is an integer number (2900952).

Almost surely, 2^16438677 is an apocalyptic number.

16438677 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16438677 is a deficient number, since it is larger than the sum of its proper divisors (6768939).

16438677 is a wasteful number, since it uses less digits than its factorization.

16438677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322347.

The product of its digits is 169344, while the sum is 42.

The square root of 16438677 is about 4054.4638363167. The cubic root of 16438677 is about 254.2663882217.

The spelling of 16438677 in words is "sixteen million, four hundred thirty-eight thousand, six hundred seventy-seven".