42818747 has 2 divisors, whose sum is σ = 42818748. Its totient is φ = 42818746.

The previous prime is 42818729. The next prime is 42818771. The reversal of 42818747 is 74781824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42818747 - 2⁶ = 42818683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42818707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21409373 + 21409374.

It is an arithmetic number, because the mean of its divisors is an integer number (21409374).

Almost surely, 2^42818747 is an apocalyptic number.

42818747 is a deficient number, since it is larger than the sum of its proper divisors (1).

42818747 is an equidigital number, since it uses as much as digits as its factorization.

42818747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100352, while the sum is 41.

The square root of 42818747 is about 6543.6035179402. The cubic root of 42818747 is about 349.8468636199.

The spelling of 42818747 in words is "forty-two million, eight hundred eighteen thousand, seven hundred forty-seven".