611372429 has 2 divisors, whose sum is σ = 611372430. Its totient is φ = 611372428.

The previous prime is 611372401. The next prime is 611372431. The reversal of 611372429 is 924273116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572309929 + 39062500 = 23923^2 + 6250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611372429 is a prime.

Together with 611372431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611372459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305686214 + 305686215.

It is an arithmetic number, because the mean of its divisors is an integer number (305686215).

Almost surely, 2^611372429 is an apocalyptic number.

It is an amenable number.

611372429 is a deficient number, since it is larger than the sum of its proper divisors (1).

611372429 is an equidigital number, since it uses as much as digits as its factorization.

611372429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 611372429 is about 24725.9464732900. The cubic root of 611372429 is about 848.7281689939.

The spelling of 611372429 in words is "six hundred eleven million, three hundred seventy-two thousand, four hundred twenty-nine".