613604077 has 2 divisors, whose sum is σ = 613604078. Its totient is φ = 613604076.

The previous prime is 613604027. The next prime is 613604099. The reversal of 613604077 is 770406316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608559561 + 5044516 = 24669^2 + 2246^2 .

It is a cyclic number.

It is not a de Polignac number, because 613604077 - 2²³ = 605215469 is a prime.

It is a super-2 number, since 2×613604077² = 753019926622043858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613604027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306802038 + 306802039.

It is an arithmetic number, because the mean of its divisors is an integer number (306802039).

Almost surely, 2^613604077 is an apocalyptic number.

It is an amenable number.

613604077 is a deficient number, since it is larger than the sum of its proper divisors (1).

613604077 is an equidigital number, since it uses as much as digits as its factorization.

613604077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 613604077 is about 24771.0330224640. The cubic root of 613604077 is about 849.7595984507.

The spelling of 613604077 in words is "six hundred thirteen million, six hundred four thousand, seventy-seven".