42104747 has 2 divisors, whose sum is σ = 42104748. Its totient is φ = 42104746.

The previous prime is 42104729. The next prime is 42104753. The reversal of 42104747 is 74740124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42104747 - 2⁶ = 42104683 is a prime.

It is a Chen prime.

It is equal to p_2553590 and since 42104747 and 2553590 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42104707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052373 + 21052374.

It is an arithmetic number, because the mean of its divisors is an integer number (21052374).

Almost surely, 2^42104747 is an apocalyptic number.

42104747 is a deficient number, since it is larger than the sum of its proper divisors (1).

42104747 is an equidigital number, since it uses as much as digits as its factorization.

42104747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 42104747 is about 6488.8170724717. The cubic root of 42104747 is about 347.8913955151.

The spelling of 42104747 in words is "forty-two million, one hundred four thousand, seven hundred forty-seven".