613949069 has 2 divisors, whose sum is σ = 613949070. Its totient is φ = 613949068.

The previous prime is 613949009. The next prime is 613949093. The reversal of 613949069 is 960949316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494484169 + 119464900 = 22237^2 + 10930^2 .

It is a cyclic number.

It is not a de Polignac number, because 613949069 - 2²⁰ = 612900493 is a prime.

It is a super-2 number, since 2×613949069² = 753866918651933522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613949009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306974534 + 306974535.

It is an arithmetic number, because the mean of its divisors is an integer number (306974535).

Almost surely, 2^613949069 is an apocalyptic number.

It is an amenable number.

613949069 is a deficient number, since it is larger than the sum of its proper divisors (1).

613949069 is an equidigital number, since it uses as much as digits as its factorization.

613949069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 613949069 is about 24777.9956614735. The cubic root of 613949069 is about 849.9188245432.

The spelling of 613949069 in words is "six hundred thirteen million, nine hundred forty-nine thousand, sixty-nine".