16431627 has 4 divisors (see below), whose sum is σ = 21908840. Its totient is φ = 10954416.

The previous prime is 16431617. The next prime is 16431659. The reversal of 16431627 is 72613461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16431627 - 2⁶ = 16431563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16431594 and 16431603.

It is not an unprimeable number, because it can be changed into a prime (16431617) 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, 2738602 + ... + 2738607.

It is an arithmetic number, because the mean of its divisors is an integer number (5477210).

Almost surely, 2^16431627 is an apocalyptic number.

16431627 is a deficient number, since it is larger than the sum of its proper divisors (5477213).

16431627 is an equidigital number, since it uses as much as digits as its factorization.

16431627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477212.

The product of its digits is 6048, while the sum is 30.

The square root of 16431627 is about 4053.5943309611. The cubic root of 16431627 is about 254.2300342345.

The spelling of 16431627 in words is "sixteen million, four hundred thirty-one thousand, six hundred twenty-seven".