42078607 has 2 divisors, whose sum is σ = 42078608. Its totient is φ = 42078606.

The previous prime is 42078557. The next prime is 42078629. The reversal of 42078607 is 70687024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42078607 - 2¹⁹ = 41554319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42078107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21039303 + 21039304.

It is an arithmetic number, because the mean of its divisors is an integer number (21039304).

Almost surely, 2^42078607 is an apocalyptic number.

42078607 is a deficient number, since it is larger than the sum of its proper divisors (1).

42078607 is an equidigital number, since it uses as much as digits as its factorization.

42078607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 42078607 is about 6486.8025251275. The cubic root of 42078607 is about 347.8193865034.

The spelling of 42078607 in words is "forty-two million, seventy-eight thousand, six hundred seven".