606409919 has 2 divisors, whose sum is σ = 606409920. Its totient is φ = 606409918.

The previous prime is 606409897. The next prime is 606409939. The reversal of 606409919 is 919904606.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 606409919 - 2²⁰ = 605361343 is a prime.

It is a super-2 number, since 2×606409919² = 735465979723173122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 606409919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606409939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303204959 + 303204960.

It is an arithmetic number, because the mean of its divisors is an integer number (303204960).

Almost surely, 2^606409919 is an apocalyptic number.

606409919 is a deficient number, since it is larger than the sum of its proper divisors (1).

606409919 is an equidigital number, since it uses as much as digits as its factorization.

606409919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 606409919 is about 24625.3917532290. The cubic root of 606409919 is about 846.4255520835.

The spelling of 606409919 in words is "six hundred six million, four hundred nine thousand, nine hundred nineteen".