42782603 has 2 divisors, whose sum is σ = 42782604. Its totient is φ = 42782602.

The previous prime is 42782581. The next prime is 42782629. The reversal of 42782603 is 30628724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42782603 - 2⁶ = 42782539 is a prime.

It is a super-2 number, since 2×42782603² = 3660702238911218, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42782603.

It is not a weakly prime, because it can be changed into another prime (42782633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21391301 + 21391302.

It is an arithmetic number, because the mean of its divisors is an integer number (21391302).

Almost surely, 2^42782603 is an apocalyptic number.

42782603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42782603 is an equidigital number, since it uses as much as digits as its factorization.

42782603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42782603 is about 6540.8411538578. The cubic root of 42782603 is about 349.7483987689.

The spelling of 42782603 in words is "forty-two million, seven hundred eighty-two thousand, six hundred three".