617343994 has 4 divisors (see below), whose sum is σ = 926015994. Its totient is φ = 308671996.

The previous prime is 617343977. The next prime is 617343997. The reversal of 617343994 is 499343716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 510986025 + 106357969 = 22605^2 + 10313^2 .

It is a super-2 number, since 2×617343994² = 762227213855744072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (617343997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154335997 + ... + 154336000.

Almost surely, 2^617343994 is an apocalyptic number.

617343994 is a deficient number, since it is larger than the sum of its proper divisors (308672000).

617343994 is a wasteful number, since it uses less digits than its factorization.

617343994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308671999.

The product of its digits is 489888, while the sum is 46.

The square root of 617343994 is about 24846.4080703831. The cubic root of 617343994 is about 851.4825310730.

The spelling of 617343994 in words is "six hundred seventeen million, three hundred forty-three thousand, nine hundred ninety-four".