609456377 has 2 divisors, whose sum is σ = 609456378. Its totient is φ = 609456376.

The previous prime is 609456319. The next prime is 609456383. The reversal of 609456377 is 773654906.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333099001 + 276357376 = 18251^2 + 16624^2 .

It is a cyclic number.

It is not a de Polignac number, because 609456377 - 2¹⁶ = 609390841 is a prime.

It is a super-2 number, since 2×609456377² = 742874150931932258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609456317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304728188 + 304728189.

It is an arithmetic number, because the mean of its divisors is an integer number (304728189).

Almost surely, 2^609456377 is an apocalyptic number.

It is an amenable number.

609456377 is a deficient number, since it is larger than the sum of its proper divisors (1).

609456377 is an equidigital number, since it uses as much as digits as its factorization.

609456377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 609456377 is about 24687.1702914692. The cubic root of 609456377 is about 847.8405980978.

The spelling of 609456377 in words is "six hundred nine million, four hundred fifty-six thousand, three hundred seventy-seven".