610999673 has 2 divisors, whose sum is σ = 610999674. Its totient is φ = 610999672.

The previous prime is 610999591. The next prime is 610999687. The reversal of 610999673 is 376999016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325153024 + 285846649 = 18032^2 + 16907^2 .

It is a cyclic number.

It is not a de Polignac number, because 610999673 - 2²⁸ = 342564217 is a prime.

It is a super-2 number, since 2×610999673² = 746641200812213858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (610999073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305499836 + 305499837.

It is an arithmetic number, because the mean of its divisors is an integer number (305499837).

Almost surely, 2^610999673 is an apocalyptic number.

It is an amenable number.

610999673 is a deficient number, since it is larger than the sum of its proper divisors (1).

610999673 is an equidigital number, since it uses as much as digits as its factorization.

610999673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 610999673 is about 24718.4075741137. The cubic root of 610999673 is about 848.5556430391. Note that the first 3 decimals are identical.

The spelling of 610999673 in words is "six hundred ten million, nine hundred ninety-nine thousand, six hundred seventy-three".