42766417 has 2 divisors, whose sum is σ = 42766418. Its totient is φ = 42766416.

The previous prime is 42766379. The next prime is 42766439. The reversal of 42766417 is 71466724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40564161 + 2202256 = 6369^2 + 1484^2 .

It is a cyclic number.

It is not a de Polignac number, because 42766417 - 2⁷ = 42766289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42766447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21383208 + 21383209.

It is an arithmetic number, because the mean of its divisors is an integer number (21383209).

Almost surely, 2^42766417 is an apocalyptic number.

It is an amenable number.

42766417 is a deficient number, since it is larger than the sum of its proper divisors (1).

42766417 is an equidigital number, since it uses as much as digits as its factorization.

42766417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 42766417 is about 6539.6037341723. The cubic root of 42766417 is about 349.7042862773.

The spelling of 42766417 in words is "forty-two million, seven hundred sixty-six thousand, four hundred seventeen".