609608401 has 2 divisors, whose sum is σ = 609608402. Its totient is φ = 609608400.

The previous prime is 609608393. The next prime is 609608413. The reversal of 609608401 is 104806906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404975376 + 204633025 = 20124^2 + 14305^2 .

It is a cyclic number.

It is not a de Polignac number, because 609608401 - 2³ = 609608393 is a prime.

It is not a weakly prime, because it can be changed into another prime (609608501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304804200 + 304804201.

It is an arithmetic number, because the mean of its divisors is an integer number (304804201).

Almost surely, 2^609608401 is an apocalyptic number.

It is an amenable number.

609608401 is a deficient number, since it is larger than the sum of its proper divisors (1).

609608401 is an equidigital number, since it uses as much as digits as its factorization.

609608401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 609608401 is about 24690.2491076943. The cubic root of 609608401 is about 847.9110879138.

The spelling of 609608401 in words is "six hundred nine million, six hundred eight thousand, four hundred one".