65442067 has 4 divisors (see below), whose sum is σ = 67698720. Its totient is φ = 63185416.

The previous prime is 65442043. The next prime is 65442071. The reversal of 65442067 is 76024456.

65442067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65442067 - 2⁷ = 65441939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65442007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128283 + ... + 1128340.

It is an arithmetic number, because the mean of its divisors is an integer number (16924680).

Almost surely, 2^65442067 is an apocalyptic number.

65442067 is a deficient number, since it is larger than the sum of its proper divisors (2256653).

65442067 is a wasteful number, since it uses less digits than its factorization.

65442067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256652.

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

The square root of 65442067 is about 8089.6271236689. The cubic root of 65442067 is about 402.9820198986.

The spelling of 65442067 in words is "sixty-five million, four hundred forty-two thousand, sixty-seven".