616474769 has 2 divisors, whose sum is σ = 616474770. Its totient is φ = 616474768.

The previous prime is 616474763. The next prime is 616474783. The reversal of 616474769 is 967474616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521665600 + 94809169 = 22840^2 + 9737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616474769 is a prime.

It is a super-2 number, since 2×616474769² = 760082281627206722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616474763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308237384 + 308237385.

It is an arithmetic number, because the mean of its divisors is an integer number (308237385).

Almost surely, 2^616474769 is an apocalyptic number.

It is an amenable number.

616474769 is a deficient number, since it is larger than the sum of its proper divisors (1).

616474769 is an equidigital number, since it uses as much as digits as its factorization.

616474769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 616474769 is about 24828.9099438538. The cubic root of 616474769 is about 851.0827120894.

The spelling of 616474769 in words is "six hundred sixteen million, four hundred seventy-four thousand, seven hundred sixty-nine".