609048779 has 2 divisors, whose sum is σ = 609048780. Its totient is φ = 609048778.

The previous prime is 609048773. The next prime is 609048787. The reversal of 609048779 is 977840906.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609048779 - 2⁸ = 609048523 is a prime.

It is not a weakly prime, because it can be changed into another prime (609048773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304524389 + 304524390.

It is an arithmetic number, because the mean of its divisors is an integer number (304524390).

Almost surely, 2^609048779 is an apocalyptic number.

609048779 is a deficient number, since it is larger than the sum of its proper divisors (1).

609048779 is an equidigital number, since it uses as much as digits as its factorization.

609048779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 609048779 is about 24678.9136511314. The cubic root of 609048779 is about 847.6515469951.

The spelling of 609048779 in words is "six hundred nine million, forty-eight thousand, seven hundred seventy-nine".