616533473 has 2 divisors, whose sum is σ = 616533474. Its totient is φ = 616533472.

The previous prime is 616533461. The next prime is 616533481. The reversal of 616533473 is 374335616.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309337744 + 307195729 = 17588^2 + 17527^2 .

It is a cyclic number.

It is not a de Polignac number, because 616533473 - 2⁶ = 616533409 is a prime.

It is a super-2 number, since 2×616533473² = 760227046658883458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616533403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308266736 + 308266737.

It is an arithmetic number, because the mean of its divisors is an integer number (308266737).

Almost surely, 2^616533473 is an apocalyptic number.

It is an amenable number.

616533473 is a deficient number, since it is larger than the sum of its proper divisors (1).

616533473 is an equidigital number, since it uses as much as digits as its factorization.

616533473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 38.

The square root of 616533473 is about 24830.0920860153. The cubic root of 616533473 is about 851.1097261032.

The spelling of 616533473 in words is "six hundred sixteen million, five hundred thirty-three thousand, four hundred seventy-three".