20606419 has 2 divisors, whose sum is σ = 20606420. Its totient is φ = 20606418.

The previous prime is 20606371. The next prime is 20606423. The reversal of 20606419 is 91460602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20606419 - 2²³ = 12217811 is a prime.

It is a super-2 number, since 2×20606419² = 849249008007122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20606429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10303209 + 10303210.

It is an arithmetic number, because the mean of its divisors is an integer number (10303210).

Almost surely, 2^20606419 is an apocalyptic number.

20606419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20606419 is an equidigital number, since it uses as much as digits as its factorization.

20606419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20606419 is about 4539.4293694252. The cubic root of 20606419 is about 274.1579487850.

It can be divided in two parts, 20606 and 419, that added together give a square (21025 = 145²).

The spelling of 20606419 in words is "twenty million, six hundred six thousand, four hundred nineteen".