606400615 has 4 divisors (see below), whose sum is σ = 727680744. Its totient is φ = 485120488.

The previous prime is 606400609. The next prime is 606400631. The reversal of 606400615 is 516004606.

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 606400615 - 2²⁹ = 69529703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 60640057 + ... + 60640066.

It is an arithmetic number, because the mean of its divisors is an integer number (181920186).

Almost surely, 2^606400615 is an apocalyptic number.

606400615 is a deficient number, since it is larger than the sum of its proper divisors (121280129).

606400615 is a wasteful number, since it uses less digits than its factorization.

606400615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121280128.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 606400615 is about 24625.2028418042. The cubic root of 606400615 is about 846.4212232275.

The spelling of 606400615 in words is "six hundred six million, four hundred thousand, six hundred fifteen".