67286945 has 32 divisors (see below), whose sum is σ = 92098944. Its totient is φ = 46758400.

The previous prime is 67286917. The next prime is 67286951. The reversal of 67286945 is 54968276.

It is not a de Polignac number, because 67286945 - 2¹² = 67282849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67286945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119234 + ... + 119796.

It is an arithmetic number, because the mean of its divisors is an integer number (2878092).

Almost surely, 2^67286945 is an apocalyptic number.

It is an amenable number.

67286945 is a deficient number, since it is larger than the sum of its proper divisors (24811999).

67286945 is a wasteful number, since it uses less digits than its factorization.

67286945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its digits is 725760, while the sum is 47.

The square root of 67286945 is about 8202.8620005459. The cubic root of 67286945 is about 406.7338056160.

The spelling of 67286945 in words is "sixty-seven million, two hundred eighty-six thousand, nine hundred forty-five".