610782197 has 2 divisors, whose sum is σ = 610782198. Its totient is φ = 610782196.

The previous prime is 610782187. The next prime is 610782223. The reversal of 610782197 is 791287016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589566961 + 21215236 = 24281^2 + 4606^2 .

It is a cyclic number.

It is not a de Polignac number, because 610782197 - 2¹² = 610778101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610782157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305391098 + 305391099.

It is an arithmetic number, because the mean of its divisors is an integer number (305391099).

Almost surely, 2^610782197 is an apocalyptic number.

It is an amenable number.

610782197 is a deficient number, since it is larger than the sum of its proper divisors (1).

610782197 is an equidigital number, since it uses as much as digits as its factorization.

610782197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 610782197 is about 24714.0081128092. The cubic root of 610782197 is about 848.4549542857.

The spelling of 610782197 in words is "six hundred ten million, seven hundred eighty-two thousand, one hundred ninety-seven".