42880667 has 2 divisors, whose sum is σ = 42880668. Its totient is φ = 42880666.

The previous prime is 42880631. The next prime is 42880679. The reversal of 42880667 is 76608824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42880667 - 2¹² = 42876571 is a prime.

It is not a weakly prime, because it can be changed into another prime (42880627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21440333 + 21440334.

It is an arithmetic number, because the mean of its divisors is an integer number (21440334).

Almost surely, 2^42880667 is an apocalyptic number.

42880667 is a deficient number, since it is larger than the sum of its proper divisors (1).

42880667 is an equidigital number, since it uses as much as digits as its factorization.

42880667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 42880667 is about 6548.3331466870. Note that the first 3 decimals coincide. The cubic root of 42880667 is about 350.0154197288.

The spelling of 42880667 in words is "forty-two million, eight hundred eighty thousand, six hundred sixty-seven".