42064567 has 2 divisors, whose sum is σ = 42064568. Its totient is φ = 42064566.

The previous prime is 42064553. The next prime is 42064609. The reversal of 42064567 is 76546024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42064567 - 2¹⁵ = 42031799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42068567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21032283 + 21032284.

It is an arithmetic number, because the mean of its divisors is an integer number (21032284).

Almost surely, 2^42064567 is an apocalyptic number.

42064567 is a deficient number, since it is larger than the sum of its proper divisors (1).

42064567 is an equidigital number, since it uses as much as digits as its factorization.

42064567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 42064567 is about 6485.7202375681. The cubic root of 42064567 is about 347.7806975847.

The spelling of 42064567 in words is "forty-two million, sixty-four thousand, five hundred sixty-seven".