606396401 has 4 divisors (see below), whose sum is σ = 653042292. Its totient is φ = 559750512.

The previous prime is 606396391. The next prime is 606396433. The reversal of 606396401 is 104693606.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88378801 + 518017600 = 9401^2 + 22760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606396401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606396481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23322926 + ... + 23322951.

It is an arithmetic number, because the mean of its divisors is an integer number (163260573).

Almost surely, 2^606396401 is an apocalyptic number.

It is an amenable number.

606396401 is a deficient number, since it is larger than the sum of its proper divisors (46645891).

606396401 is a wasteful number, since it uses less digits than its factorization.

606396401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46645890.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 606396401 is about 24625.1172789085. The cubic root of 606396401 is about 846.4192625724.

The spelling of 606396401 in words is "six hundred six million, three hundred ninety-six thousand, four hundred one".