611672839 has 2 divisors, whose sum is σ = 611672840. Its totient is φ = 611672838.

The previous prime is 611672827. The next prime is 611672849. The reversal of 611672839 is 938276116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611672839 - 2¹⁷ = 611541767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 611672795 and 611672804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611672819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305836419 + 305836420.

It is an arithmetic number, because the mean of its divisors is an integer number (305836420).

Almost surely, 2^611672839 is an apocalyptic number.

611672839 is a deficient number, since it is larger than the sum of its proper divisors (1).

611672839 is an equidigital number, since it uses as much as digits as its factorization.

611672839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 611672839 is about 24732.0205199656. The cubic root of 611672839 is about 848.8671593854.

The spelling of 611672839 in words is "six hundred eleven million, six hundred seventy-two thousand, eight hundred thirty-nine".