616452769 has 2 divisors, whose sum is σ = 616452770. Its totient is φ = 616452768.

The previous prime is 616452731. The next prime is 616452779. The reversal of 616452769 is 967254616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 586608400 + 29844369 = 24220^2 + 5463^2 .

It is a cyclic number.

It is not a de Polignac number, because 616452769 - 2¹¹ = 616450721 is a prime.

It is a super-2 number, since 2×616452769² = 760028032815534722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616452779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308226384 + 308226385.

It is an arithmetic number, because the mean of its divisors is an integer number (308226385).

Almost surely, 2^616452769 is an apocalyptic number.

It is an amenable number.

616452769 is a deficient number, since it is larger than the sum of its proper divisors (1).

616452769 is an equidigital number, since it uses as much as digits as its factorization.

616452769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 616452769 is about 24828.4669079668. The cubic root of 616452769 is about 851.0725878349.

The spelling of 616452769 in words is "six hundred sixteen million, four hundred fifty-two thousand, seven hundred sixty-nine".