42072763 has 2 divisors, whose sum is σ = 42072764. Its totient is φ = 42072762.

The previous prime is 42072731. The next prime is 42072781. The reversal of 42072763 is 36727024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42072763 - 2⁵ = 42072731 is a prime.

It is not a weakly prime, because it can be changed into another prime (42072463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036381 + 21036382.

It is an arithmetic number, because the mean of its divisors is an integer number (21036382).

Almost surely, 2^42072763 is an apocalyptic number.

42072763 is a deficient number, since it is larger than the sum of its proper divisors (1).

42072763 is an equidigital number, since it uses as much as digits as its factorization.

42072763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 42072763 is about 6486.3520564336. The cubic root of 42072763 is about 347.8032837000.

Adding to 42072763 its reverse (36727024), we get a palindrome (78799787).

The spelling of 42072763 in words is "forty-two million, seventy-two thousand, seven hundred sixty-three".