610904893 has 2 divisors, whose sum is σ = 610904894. Its totient is φ = 610904892.

The previous prime is 610904881. The next prime is 610904927. The reversal of 610904893 is 398409016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437771929 + 173132964 = 20923^2 + 13158^2 .

It is a cyclic number.

It is not a de Polignac number, because 610904893 - 2⁹ = 610904381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610904993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305452446 + 305452447.

It is an arithmetic number, because the mean of its divisors is an integer number (305452447).

Almost surely, 2^610904893 is an apocalyptic number.

It is an amenable number.

610904893 is a deficient number, since it is larger than the sum of its proper divisors (1).

610904893 is an equidigital number, since it uses as much as digits as its factorization.

610904893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 610904893 is about 24716.4903050575. The cubic root of 610904893 is about 848.5117639851.

The spelling of 610904893 in words is "six hundred ten million, nine hundred four thousand, eight hundred ninety-three".