21127714 has 8 divisors (see below), whose sum is σ = 31713948. Its totient is φ = 10556400.

The previous prime is 21127699. The next prime is 21127721. The reversal of 21127714 is 41772112.

It can be written as a sum of positive squares in 2 ways, for example, as 21114025 + 13689 = 4595^2 + 117^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024 + ... + 6580.

Almost surely, 2^21127714 is an apocalyptic number.

21127714 is a deficient number, since it is larger than the sum of its proper divisors (10586234).

21127714 is a wasteful number, since it uses less digits than its factorization.

21127714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460.

The product of its digits is 784, while the sum is 25.

The square root of 21127714 is about 4596.4893125080. The cubic root of 21127714 is about 276.4505785161.

Adding to 21127714 its reverse (41772112), we get a palindrome (62899826).

The spelling of 21127714 in words is "twenty-one million, one hundred twenty-seven thousand, seven hundred fourteen".