67650845 has 4 divisors (see below), whose sum is σ = 81181020. Its totient is φ = 54120672.

The previous prime is 67650799. The next prime is 67650899. The reversal of 67650845 is 54805676.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8637721 + 59013124 = 2939^2 + 7682^2 .

It is a cyclic number.

It is not a de Polignac number, because 67650845 - 2¹⁰ = 67649821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6765080 + ... + 6765089.

It is an arithmetic number, because the mean of its divisors is an integer number (20295255).

Almost surely, 2^67650845 is an apocalyptic number.

It is an amenable number.

67650845 is a deficient number, since it is larger than the sum of its proper divisors (13530175).

67650845 is a wasteful number, since it uses less digits than its factorization.

67650845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530174.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 67650845 is about 8225.0133738493. The cubic root of 67650845 is about 407.4657178181.

The spelling of 67650845 in words is "sixty-seven million, six hundred fifty thousand, eight hundred forty-five".