617627089 has 2 divisors, whose sum is σ = 617627090. Its totient is φ = 617627088.

The previous prime is 617627081. The next prime is 617627137. The reversal of 617627089 is 980726716.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317124864 + 300502225 = 17808^2 + 17335^2 .

It is a cyclic number.

It is not a de Polignac number, because 617627089 - 2³ = 617627081 is a prime.

It is a super-2 number, since 2×617627089² = 762926442133227842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (617627081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308813544 + 308813545.

It is an arithmetic number, because the mean of its divisors is an integer number (308813545).

Almost surely, 2^617627089 is an apocalyptic number.

It is an amenable number.

617627089 is a deficient number, since it is larger than the sum of its proper divisors (1).

617627089 is an equidigital number, since it uses as much as digits as its factorization.

617627089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 617627089 is about 24852.1043173410. The cubic root of 617627089 is about 851.6126657644.

The spelling of 617627089 in words is "six hundred seventeen million, six hundred twenty-seven thousand, eighty-nine".