42615667 has 2 divisors, whose sum is σ = 42615668. Its totient is φ = 42615666.

The previous prime is 42615659. The next prime is 42615679. The reversal of 42615667 is 76651624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42615667 - 2³ = 42615659 is a prime.

It is not a weakly prime, because it can be changed into another prime (42615367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21307833 + 21307834.

It is an arithmetic number, because the mean of its divisors is an integer number (21307834).

Almost surely, 2^42615667 is an apocalyptic number.

42615667 is a deficient number, since it is larger than the sum of its proper divisors (1).

42615667 is an equidigital number, since it uses as much as digits as its factorization.

42615667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 42615667 is about 6528.0676313899. The cubic root of 42615667 is about 349.2929044086.

The spelling of 42615667 in words is "forty-two million, six hundred fifteen thousand, six hundred sixty-seven".