609712379 has 2 divisors, whose sum is σ = 609712380. Its totient is φ = 609712378.

The previous prime is 609712373. The next prime is 609712391. The reversal of 609712379 is 973217906.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609712379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (609712373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304856189 + 304856190.

It is an arithmetic number, because the mean of its divisors is an integer number (304856190).

Almost surely, 2^609712379 is an apocalyptic number.

609712379 is a deficient number, since it is larger than the sum of its proper divisors (1).

609712379 is an equidigital number, since it uses as much as digits as its factorization.

609712379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 609712379 is about 24692.3546669814. The cubic root of 609712379 is about 847.9592932244.

The spelling of 609712379 in words is "six hundred nine million, seven hundred twelve thousand, three hundred seventy-nine".