611957413 has 2 divisors, whose sum is σ = 611957414. Its totient is φ = 611957412.

The previous prime is 611957399. The next prime is 611957417. The reversal of 611957413 is 314759116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504586369 + 107371044 = 22463^2 + 10362^2 .

It is a cyclic number.

It is not a de Polignac number, because 611957413 - 2⁹ = 611956901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611957417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305978706 + 305978707.

It is an arithmetic number, because the mean of its divisors is an integer number (305978707).

Almost surely, 2^611957413 is an apocalyptic number.

It is an amenable number.

611957413 is a deficient number, since it is larger than the sum of its proper divisors (1).

611957413 is an equidigital number, since it uses as much as digits as its factorization.

611957413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 611957413 is about 24737.7730000095. The cubic root of 611957413 is about 848.9987809840.

The spelling of 611957413 in words is "six hundred eleven million, nine hundred fifty-seven thousand, four hundred thirteen".