16421627 has 8 divisors (see below), whose sum is σ = 17268240. Its totient is φ = 15593760.

The previous prime is 16421623. The next prime is 16421683. The reversal of 16421627 is 72612461.

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

It is a cyclic number.

It is not a de Polignac number, because 16421627 - 2² = 16421623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16421627.

It is not an unprimeable number, because it can be changed into a prime (16421623) 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, 2873 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (2158530).

Almost surely, 2^16421627 is an apocalyptic number.

16421627 is a deficient number, since it is larger than the sum of its proper divisors (846613).

16421627 is an equidigital number, since it uses as much as digits as its factorization.

16421627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373.

The product of its digits is 4032, while the sum is 29.

The square root of 16421627 is about 4052.3606700293. The cubic root of 16421627 is about 254.1784504555.

The spelling of 16421627 in words is "sixteen million, four hundred twenty-one thousand, six hundred twenty-seven".