617480923 has 2 divisors, whose sum is σ = 617480924. Its totient is φ = 617480922.

The previous prime is 617480917. The next prime is 617480993. The reversal of 617480923 is 329084716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 617480923 - 2¹³ = 617472731 is a prime.

It is not a weakly prime, because it can be changed into another prime (617480993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308740461 + 308740462.

It is an arithmetic number, because the mean of its divisors is an integer number (308740462).

Almost surely, 2^617480923 is an apocalyptic number.

617480923 is a deficient number, since it is larger than the sum of its proper divisors (1).

617480923 is an equidigital number, since it uses as much as digits as its factorization.

617480923 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 40.

The square root of 617480923 is about 24849.1634265623. The cubic root of 617480923 is about 851.5454803273.

The spelling of 617480923 in words is "six hundred seventeen million, four hundred eighty thousand, nine hundred twenty-three".