611683393 has 2 divisors, whose sum is σ = 611683394. Its totient is φ = 611683392.

The previous prime is 611683379. The next prime is 611683411. The reversal of 611683393 is 393386116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556582464 + 55100929 = 23592^2 + 7423^2 .

It is a cyclic number.

It is not a de Polignac number, because 611683393 - 2⁵ = 611683361 is a prime.

It is not a weakly prime, because it can be changed into another prime (611683313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305841696 + 305841697.

It is an arithmetic number, because the mean of its divisors is an integer number (305841697).

Almost surely, 2^611683393 is an apocalyptic number.

It is an amenable number.

611683393 is a deficient number, since it is larger than the sum of its proper divisors (1).

611683393 is an equidigital number, since it uses as much as digits as its factorization.

611683393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 611683393 is about 24732.2338861656. The cubic root of 611683393 is about 848.8720415663.

The spelling of 611683393 in words is "six hundred eleven million, six hundred eighty-three thousand, three hundred ninety-three".