20614919 has 4 divisors (see below), whose sum is σ = 22200696. Its totient is φ = 19029144.

The previous prime is 20614903. The next prime is 20614927. The reversal of 20614919 is 91941602.

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

It is a cyclic number.

It is not a de Polignac number, because 20614919 - 2⁴ = 20614903 is a prime.

It is a super-2 number, since 2×20614919² = 849949770753122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20614949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792869 + ... + 792894.

It is an arithmetic number, because the mean of its divisors is an integer number (5550174).

Almost surely, 2^20614919 is an apocalyptic number.

20614919 is a deficient number, since it is larger than the sum of its proper divisors (1585777).

20614919 is a wasteful number, since it uses less digits than its factorization.

20614919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585776.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 20614919 is about 4540.3655139207. The cubic root of 20614919 is about 274.1956396654.

The spelling of 20614919 in words is "twenty million, six hundred fourteen thousand, nine hundred nineteen".