616452973 has 2 divisors, whose sum is σ = 616452974. Its totient is φ = 616452972.

The previous prime is 616452961. The next prime is 616452979. The reversal of 616452973 is 379254616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449991369 + 166461604 = 21213^2 + 12902^2 .

It is a cyclic number.

It is not a de Polignac number, because 616452973 - 2²⁵ = 582898541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616452979) 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, 308226486 + 308226487.

It is an arithmetic number, because the mean of its divisors is an integer number (308226487).

Almost surely, 2^616452973 is an apocalyptic number.

It is an amenable number.

616452973 is a deficient number, since it is larger than the sum of its proper divisors (1).

616452973 is an equidigital number, since it uses as much as digits as its factorization.

616452973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 616452973 is about 24828.4710161540. The cubic root of 616452973 is about 851.0726817155.

The spelling of 616452973 in words is "six hundred sixteen million, four hundred fifty-two thousand, nine hundred seventy-three".