42357773 has 2 divisors, whose sum is σ = 42357774. Its totient is φ = 42357772.

The previous prime is 42357751. The next prime is 42357779. The reversal of 42357773 is 37775324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38105929 + 4251844 = 6173^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 42357773 - 2²² = 38163469 is a prime.

It is equal to p_2568089 and since 42357773 and 2568089 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42357779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21178886 + 21178887.

It is an arithmetic number, because the mean of its divisors is an integer number (21178887).

Almost surely, 2^42357773 is an apocalyptic number.

It is an amenable number.

42357773 is a deficient number, since it is larger than the sum of its proper divisors (1).

42357773 is an equidigital number, since it uses as much as digits as its factorization.

42357773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 38.

The square root of 42357773 is about 6508.2849507378. The cubic root of 42357773 is about 348.5868818334.

The spelling of 42357773 in words is "forty-two million, three hundred fifty-seven thousand, seven hundred seventy-three".