617404349 has 2 divisors, whose sum is σ = 617404350. Its totient is φ = 617404348.

The previous prime is 617404343. The next prime is 617404451. The reversal of 617404349 is 943404716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446265625 + 171138724 = 21125^2 + 13082^2 .

It is a cyclic number.

It is not a de Polignac number, because 617404349 - 2⁸ = 617404093 is a prime.

It is a super-2 number, since 2×617404349² = 762376260328227602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617404343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308702174 + 308702175.

It is an arithmetic number, because the mean of its divisors is an integer number (308702175).

Almost surely, 2^617404349 is an apocalyptic number.

It is an amenable number.

617404349 is a deficient number, since it is larger than the sum of its proper divisors (1).

617404349 is an equidigital number, since it uses as much as digits as its factorization.

617404349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 617404349 is about 24847.6226025751. The cubic root of 617404349 is about 851.5102787328.

The spelling of 617404349 in words is "six hundred seventeen million, four hundred four thousand, three hundred forty-nine".