42763577 has 2 divisors, whose sum is σ = 42763578. Its totient is φ = 42763576.

The previous prime is 42763573. The next prime is 42763579. The reversal of 42763577 is 77536724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27678121 + 15085456 = 5261^2 + 3884^2 .

It is a cyclic number.

It is not a de Polignac number, because 42763577 - 2² = 42763573 is a prime.

Together with 42763579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42763573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21381788 + 21381789.

It is an arithmetic number, because the mean of its divisors is an integer number (21381789).

Almost surely, 2^42763577 is an apocalyptic number.

It is an amenable number.

42763577 is a deficient number, since it is larger than the sum of its proper divisors (1).

42763577 is an equidigital number, since it uses as much as digits as its factorization.

42763577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 41.

The square root of 42763577 is about 6539.3865920283. The cubic root of 42763577 is about 349.6965451397.

The spelling of 42763577 in words is "forty-two million, seven hundred sixty-three thousand, five hundred seventy-seven".